To make clear the electric propulsion and difference of the chemical propulsion in superior disadvantage, must first understand that Junior High School lives the concept of understanding, that is the acceleration. 想要搞清楚电推进与化学推进在优劣势上的区别,首先必须了解一个初中生都懂的概念,那便是加速度。 In short distance scale, because of the chemical propulsion way huge thrust force, can make the spacecraft be a very high speed in a short time, therefore gets the advantage in the flight time generally speaking. 在较短的距离尺度上,因为化学推进方式庞大的推力,可以让航天器在较短的时间内达到一个很高的速度,因此总体来看在飞行时间上更占优势。 If enlarges the distance scale to 1 million kilometers, and even tens of millions kilometers, was another situation. 然而如果将距离尺度放大到百万公里,乃至数千万公里,又是另一种情况了。 Although the electric propulsion is unable to chemical propulsion such, to receive in exchange for the huge thrust force the working substance disposable eruption in a short time, but can actually through continuing the acceleration, is relying on the huge specific impulse, obtains the speed maximum value of being much greater than the chemical rocket. 电推进虽然无法向化学推进那样,在较短的时间内将工质一次性喷发以换取庞大的推力,但却可以通过持续的加速,凭借着庞大的比冲,获得一个远大于化学火箭的速度最大值。 Therefore, regarding the bfr rocket, spans tens of millions kilometer distances to go to sparks/Mars to take 3 months. 因此,对于bfr火箭来说,跨越数千万公里的距离前往火星需要三个月的时间。 But regarding from the lunar orbit direct Move out multi-colored sunlight number, one month of then foot. 但对于从月球轨道直接出发的霞光号而言,一个月的时间便足矣。 This was in missing Homan transfer orbit the situation of best launch window period, if the relative position of sparks/Mars and Earth in the best launch position, possibly could not need then to complete including one month exactly sufficiently one time from Moon to the flight of sparks/Mars. 这还是在错过了霍曼转移轨道的最佳发射窗口期的情况下,如果火星与地球的相对位置恰好在最佳发射位置,可能连一个月都用不到便足以完成一次从月球到火星的飞行。 In a profound dark deep space, the astronaut in the station delivers the destination the Moon Palace number, and completes the working substance supplies the multi-colored sunlight number, is separating with the Moon Palace number space station slowly. 一片深邃幽暗的深空之中,将月宫号驻站宇航员送达目的地,并完成工质补给的霞光号,正缓缓与月宫号空间站分离。 Sits in the cockpit, Xu Zhenghong put out a hand to press on the helmet, said to the ground command center report with the clear sound. 坐在驾驶舱内,许正宏伸手在头盔上按了一下,用清晰的声音向地面指挥中心汇报道。 „Here is the multi-colored sunlight number, we have completed the complete flight mission, the request next instruction.” “这里是霞光号,我们已经完成全部飞行任务,请求下一步指示。” „Here is the ground command control center, congratulates you to complete the complete task, now asks you to switch over the cruise pattern, waits for the next instruction.” “这里是地面指挥指挥中心,恭喜你们完成全部任务,现在请你们切换到巡航模式,等待下一步指示。” „Receives, is cutting the cruise pattern.” “收到,正在切换到巡航模式。” Sits in the copilot position, looks Xu Zhenghong who switches over the cruise pattern, Liu Biao speaks thoughtlessly to ask the sentence said. 坐在副驾驶位上,看着切换到巡航模式的许正宏,刘彪随口问了句说。 „Doesn't return directly?” “不直接返航吗？” „Ground command section lets our again wait.” “地面指挥部让我们再等等。” „Because of these Americans?” “因为那些美国人？” „Yes.” “是的。” Mentioned this matter, in Liu Biao heart was also a feeling. 说起这件事儿,刘彪的心中也是不禁一阵感慨。 2-3 months ago, they have also met on the Earth outer space track probably by far. 大概在2-3个月前,他们在地球外空间轨道上还远远地见过一面。 At that time without greeted with enough time, visits them to fly far. 当时没来得及打招呼,就看着他们飞远了。 Never expected that must meet now immediately, actually in such form. 没想到现在马上又要见面了,却是以这样的形式。 Continued a small little while in the cockpit silent. 沉默在驾驶舱内持续了一小会儿。 The eye in Xu Zhenghong semi-closure, prepares rests a while the time, signal light in the cockpit glittered suddenly slightly. 就在许正宏半闭上眼睛,准备睡一会儿的时候,驾驶舱内的信号灯忽然微微闪烁了一下。 Liu Biao opens the mouth to remind: „Ground command center signal.” 刘彪开口提醒道:“地面指挥中心的信号。” „Saw it,” opened the semi-closure the eye, Xu Zhenghong sat from the chair straight, put out a hand to press on the helmet, „here was the multi-colored sunlight number, is going to the scheduled air zone, prepared to switch over the route......” “看见了,”睁开了半闭着的眼睛,许正宏从靠椅上坐直了起来,伸手在头盔上按了一下,“这里是霞光号,正在前往预定空域,准备切换航路……” „5, 4, 3, 2 and 1...... ignition!” “五、四、三、二、一……点火！” The quiet blue arc light from multi-colored sunlight number five electric propulsion engine spraying, drags to entrain the silver spaceship, drives toward remote boundless star sea...... 幽蓝色的弧光从霞光号的五座电推进引擎喷射,拖拽着银色的飞船,向着遥远的无垠的星海驶去…… ...... …… Before 15 minutes . 15分钟前。 In this difficult option, the White House finally made the choice. Meanwhile, the China Ministry of Foreign Affairs received from US the phone call that is made by the president, and in the telephone, US President officially had the request of rescue. 在这个两难的选项中,白宫终于做出了抉择。与此同时,华国外交部接到了来自美国方面由总统打来的电话,并且在电话中,美国总统正式提出了救援的请求。 Before 10 minutes, the news passed to Jinling Space Launch Center, the staff who finished the guidance work, return on the job immediately. 十分钟前,消息传到了金陵航天发射中心,结束导航工作的工作人员,立刻重新回到了工作岗位上。 Also is almost at the same time, is carrying out the task the multi-colored sunlight number to receive the news on the lunar orbit, immediately starts the preparation plan, after the Moon Palace number space station completed the supplies of working substance and living materials, along is calculated the good route to rush to sparks/Mars based on the ground command center beforehand. 也几乎是同一时间,正在月球轨道上执行任务的霞光号接到消息,立刻启动了预备方案,在月宫号空间站完成了工质与生活物资的补给之后,沿着事先由地面指挥中心计算好的航道奔赴火星。 From receiving the rescue requested rescue crew Move out, less than 15 minutes. 从接到救援请求到救援队出发,前后不到15分钟的时间。 In this moment, the world witnessed the China efficiency again. 在这一刻,世界再一次见证了华国效率。 Meanwhile, the lunar orbit construction committee held the press conference in Jinling Hotel, reported the latest progress of relief operations to the reporters of major media publicly. 与此同时,月球轨道施工委员会在金陵大酒店召开了新闻发布会,面向各大媒体的记者公开汇报了救援行动的最新进展。 This action, almost not spitting blood of US air/Qi. 这一举动,差点没把美国气的吐血。 Low-key office matter of reaching an agreement? 说好的低调办事儿呢？ How even the reporters invited! 怎么连记者都请好了！ White House is the plan processed low-key, the result has not thought that China did things with a lot of fuss and expense directly on a grand scale, is holds the press conference to the people from various circles real-time report rescue progress. 原本白宫方面是打算低调处理的,结果没想到华国这边直接大张旗鼓地大操大办了起来,又是开新闻发布会又是向社会各界实时汇报救援进展。 The rescue plan that especially within that 15 minutes start, makes nasa Ares plan the ground command center staff to be red in the face immediately. 尤其是那个15分钟之内启动的救援方案,顿时让nasa阿瑞斯计划地面指挥中心的工作人员一阵面红耳赤。 They spent the result that three days of temporal behaviors various options as well as possibly caused, the person who actually no can be responsible for told them to rescue, missed the best window of launch. 他们花了三天时间分析出了各种选项以及可能导致的结果,却没有一个能负责的人告诉他们到底救不救,以至于错过了发射的最佳窗口期。 Finally that side China has not made any budget appraisal, less than 15 minutes then determined the route and sent out the rescue crew, they exploded incessantly a street in the efficiency general. 结果华国那边没有做任何预算评估,不到15分钟便确定了航道并派出了救援队,在效率上将他们爆了不止一条街。 Although they are also clear, this rescue plan definitely does not do in 15 minutes, perhaps before that video phone, even is three days ago has prepared. 虽然他们也清楚,这个救援方案肯定不是在15分钟之内做出来的,没准在那个视频电话之前,甚至是三天之前就已经准备好了。 Even so, this efficiency also made them be able not hold a candle sufficiently. 但即便是如此,这种效率也足以令他们望尘莫及了。 Not only so, China in rescue shows in „humanitarian” empties the transparent and earnest responsible attitude, shifted responsibility onto others to form the stark contrast with nasa previous about, suddenly let the staff who all Ares planned the ground command center, as well as these supported people who Ares is planning, felt shameful, the public opinion wind direction also changed in one night. 不只是如此,华国在“人道主义”救援上展现出的空开透明、认真负责的态度,与nasa先前的左右推诿形成了鲜明的反差,一时间让所有阿瑞斯计划地面指挥中心的工作人员,以及那些支持着阿瑞斯计划的人们,都感到了无地自容,舆论的风向也在一夜之间发生了变化。 【I am ashamed for nasa.】 【我为nasa感到羞愧。】 【Unbelievable, if not the China person, we do not even know that actually we colonizer on sparks/Mars did meet what?! The White House is planned that their bodies made decent, sends people to gather up dead bodies to them again?】 【难以置信,如果不是华国人,我们甚至不知道我们在火星上的殖民者究竟遇到了什么？！白宫是打算等他们的尸体都风化了,再派人上去给他们收尸吗？】 【Within 15 minutes send out the rescue crew...... God, this is how possible!】 【15分钟之内派出救援队……上帝,这怎么可能！】 【Do not say the rescue difficulty with me, I suspect now seriously nasa has not planned to save others!】 【别和我说救援难度,我现在严重怀疑nasa根本就没打算救人！】 【Until now, I know why «sparks/Mars Diary» stopped broadcasting, is not because communications cost is expensive, is not because the sand storm on sparks/Mars, purely is because our White House and nasa want to conceal truth......】 【直到现在,我才知道《火星日记》是为什么停播了,不是因为通讯成本昂贵,也不是因为火星上的沙尘暴,纯粹是因为我们的白宫和nasa想要隐瞒真相……】 In order to save the face, shows simultaneously regarding the determination that meeting the citizen goes home, after realizing the gravity of matter, White House announced urgently, will undertake the complete budget of this aid program. 为了挽回颜面,同时展现出对于接自己公民回家的决心,在意识到事情的严重性之后,白宫方面紧急宣布,会承担这次救援计划的全部预算。 However announced that just sent not to arrive for five minutes, nasa then received a bill that sends from Pacific Ocean. 然而公告刚刚发出来没到五分钟,nasa这边便接到了一张从太平洋对面寄过来的账单。 Altogether 1.7 billion US dollars. 一共17亿美元。 The support sweeps the code and installment payment. 支持扫码、分期付款。 After seeing this bill, Chief Casson had almost not been mad the internal injury. 看到这张账单之后,卡森局长差点没被气出内伤。 1.7 billion US dollars! 17亿美元！ mother can reforger again a multi-colored sunlight number! 尼玛都可以重新造一架霞光号了！ This is him, when cash machine? 这是把他当提款机了吗？ At this time, his assistant walked from side. 就在这时候,他的助理从旁边走了过来。 „Mister......” “先生……” „What's wrong?” “怎么了？” Looks at complexion bad Chief Casson, the assistant hesitant the moment, starts to speak but hesitates said. 看着脸色不善的卡森局长,助理犹豫了片刻,欲言又止地说道。 „A bad news......” “一个坏消息……” Looks at the womanishly fussy subordinate, Casson did not say patiently: „Rubbish, hurries to say.” 看着婆婆妈妈的属下,卡森不耐烦道:“别废话,赶紧说。” „Yes!” Sees the boss impatient expression, the assistant rushed to select , said that „...... before a half hour, we discovered in the China state media official site, their side also offered an issue of documentary film program.” “是！”见上司不耐烦的表情,那助理赶忙点了下头,开口说道,“……就在半小时前,我们在华国官媒官网上发现,他们那边也出了一期纪录片节目。” Hears these words, Chief Casson thump, the secret feeling was not wonderful immediately. 一听到这句话,卡森局长心里顿时咯噔了一下,暗暗感觉不妙。 But this is not wonderful came from where, he also cannot say. 但这股不妙从何而来,他却又是说不上来。 Opens mouth, he uses reluctantly the sound, opens the mouth to ask. 张了张嘴,他用勉强地声音,开口问道。 „What documentary film?” “什么纪录片？” The assistant smiles bitterly and astringently. 那助理苦涩一笑。 „Name was...... sparks/Mars to rescue probably.” “名字好像叫……火星救援。” Casson: „......” 卡森:“……” Besides a syntax to subdue|grams, he what words does not want to say now...... 除了一句法克之外,他现在什么话也不想讲……