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阿波罗飞船探月
V1byDoraZhao
一个关于lunar 啥啥的研究。
V2bymyc_815
第一段,当阿波罗飞船从月球取回土壤样本时大家都认为月球表面smooth, airless,似乎很安详,但其实环境很恶略,好像总是下细小的颗粒雨把地面弄的坑坑洼洼
第二段,有点忘了,好像说科学家研究这些小颗粒富含许多物质可以当作资源使用。最后一句说有些dust对机器对人有害,人会吸入肺中。 (有考题)
第三段,忘了。
V3byzephyruswong
阿波罗探月,这个没读明白。不记得了。 。大概就是取月亮上的东西做实验。 。
V4byDreamsgirl
一篇考的是Appollo计画,挺长的,一屏多
V5bygtagta(720)
一篇是月球的。大概是讲月球表面的物质构成的,然后科学家根据月球探测器带回来的sample想在地球上模拟一个类似的环境,最终目的是人类能在月球上生活。
V6byzengwj
第一篇:关于月球的(长度:一屏半)
美国阿波罗号探访月球,发现月球上面的小圆点原来都是一个个很大的坑。月球上有一种沙尘暴(按照文章的理解应该是类似与沙尘暴的东西),里面的小颗粒对机器,人都会有损害。 (文章会问道这种颗粒有什么特征,阅读的时候注意一下)
阿波罗号回来后,科学家根据月球探测器带回来的sample想在地球上模拟一个类似的环境,模拟的材料出了来自美国,当然还来自国际。 (有问题问到模拟器中物质的问题,我选这种物质不是所有的都是来自美国的选项,不知道对不对。答案在第二段)
V7bydidiflute
第一段讲以前认为月球很平坦,但是现在发现月球上有很多坑,然后说月球表面的什么土什么的对机器有损害,对人的肺也是。 (后面有考题,问说如果不是宇航员上月球而是用机器人,那么下面那个是正确的:基本确认,选择说如果机器人能够避免月球表面的对metal的腐蚀那么这个计画就是顺利的。总之是有个unless的选项,大概是C吧)
第二段是讲到了APOLO阿波罗号带回来的什么样本,然后科学家只有simulate模拟这种月球的土质才能以后在月球上built观测点开发月球。 (这里有题,好象是infer题吧,大概是选科学家只有运用这种simulant(这词我不太懂,约摸是对土质的模拟的意思吧)才能够进行试验)。然后说现在能够模拟出那些那些方面的regional 土质来了。一大堆细节,不重要。
这篇考到的话要好好看哈,反正挺烦的。 。 。拖我时间了的。
然后第三段不太重要。
V8byjjj_kkk_kkk(760 V41)
第一段,lunar rock sample有suprising results-很晦涩的一段,地理名词太多。幸好考点不多第二段现实的lunar sample太少,不足以做研究(考点,细节)。
第三段US在Arizona用火山岩仿照lunar rock。只仿造3种最基本的--有题,问原因,原因是造所有的成本太高。
V9bykidyrain(730)
lunar带回来的sample那篇,有一道问题是infer题,问可以从lunar带回来的sample中知道什么,开始的时候看了很久,后来恍然大悟应该选A,但选项忘了
V10by zl_summer
说阿波罗从月球带回了一些sample,科学家研究表明以前观点不对,事实上它的表面有很多***(不记得了)然后这类研究就不流行了,知道某些科学家发现研究还是有意义的,于是合成了某三个物质去某一月球,但是由于月球表面各地是复杂的,所以很难推,尽管如此,模拟的材料还是取得了成功,这些东西的原材料来自世界各地(有一题就是关于这个的)。
V11by amumu
(1)suggest题,要一个个排除 (2)寂静题:就是不是所有都来自美国那个。 (3)主题题:选择的是explain context ...
V12by Saixss(740 V39)
我出到了一个题目问关于那个material,仔细看过了,应该是选不是来自美国的一个地方的那个选项。 。 又考到关于那个regolith,这里是重点好好看。 。问这个agglutinates有什么特点。 。我好像选的是被GLASS包围的那一项。 。还有什么IRON含量很高,或者是来自regolith。 。
V13by zowenny (V27)
题目第一题是inffer 我选的是月球上的环境会导致mental 的设备坏掉还有一题问你关于从月球上取回来的sample 我选的是他们只对那些研究AISm之类的一个项目的科学家available 有一题问如果用机器人探月的话要成功则选哪个only if 寂静里的那个答案是对的
V14by yiluqiming
就是问关于那个lunar sample的问以下哪个是正确的?我选的是那个lunar sample 几乎包含了major 月球的成分,还有答案是说sample里有月球上带来的火山岩,这是错的,因为原文指明了此火山岩是从在Arizona in US 那里拿来的
V15by leeyuan1(700)
http://forum.chasedream.com/GMAT_Math/thread-417776-1-1.html
完全一样顺序小不同,略删节,文字句式内容和他里面分析的题目也一样
V16by winner2010(690 V35)
这篇有个题目很搞的,问到那个regolith,大家好好看看吧.我觉得是二三段里定位…
V17bygerrard(710 V36)
第一段讲以前认为月球很平坦,美国阿波罗号探访月球,发现月球上面的小圆点原来都是一个个很大的坑。月球上有一种沙尘暴(按照文章的理解应该是类似与沙尘暴的东西),里面的小颗粒对机器,对人都有害,人会吸入肺中。 Q1:问说如果不是宇航员上月球而是用机器人,那么下面那个是正确的:基本确认,选择说如果机器人能够避免月球表面的对metal的腐蚀那么这个计画就是顺利的。总之是有个unless的选项,大概是C吧) 第二段是讲到了APOLO阿波罗号带回来的什么样本,现实的lunar sample太少,不足以做研究。然后科学家只有simulate模拟这种月球的土质才能以后在月球上built观测点开发月球。模拟的材料出了来自美国,当然还来自国际。 Q2:问模拟器中物质的问题,我选这种物质不是所有的都是来自美国的选项,答案在第二段(730) Q3:infer题:问可以从lunar带回来的sample中知道什么,选A,大概是选科学家只有运用这种simulate才能够进行试验。 Q4.第三段US在Arizona用火山岩仿照lunar rock。只仿造3种最基本的--有题,问原因,原因是造所有的成本太高。 ..
相关文章 阿波罗。 。来考一个~ 找资料的时候翻到的别人考来的。 。拿来share一个~ 不知道古不古啊~~~来看看啊~~
Working in a space suit is difficult because it reduces the dexterity of its wearer, so specialized tools were developed for Apollo astronauts to use in gathering rock and dust specimens. The grip attainable with spacesuit gloves was restricted and fatiguing for the hands, so all tools were designed with large-diameter, textured grips. Because astronauts could not bend over in their space suits, tools either had a long handle or were attached to an extension handle.
Specimen-Collection Tools
Tongs or a rake were used to collect rocks that were fist-sized or smaller. By raking a large area, an astronaut could quickly gather many walnut-sized rocks free of soil. The goal was to collect many small diverse rock specimens, rather than a few large ones. In contrast, dust samples were acquired by scooping. As astronauts learned about the behavior of the Moon's very fine dust in low gravity, the efficiency of the scoops evolved. The first scoop was boxy. By the Apollo 15 mission, the final design was achieved by an adjustable angle, tapered scoop.
To recover the dust preserved in original layers, as desired by the geologists, core tubes were used. The coring devices were of two types: tubes that were pounded into the ground with a hammer, called "drive tubes," and tubes that were drilled into the ground with a rotary/percussive motor, called "drill cores." Narrow, relatively thick-walled drive tubes were used on the early missions (Apollo 11, 12 and 14). The Apollo 11 drive tubes were designed to acquire "fluffy " dust, not the densely packed dust and rock fragments the astronauts encountered. Consequently, the Apollo drive tubes penetrated only about 10 centimeters (3.94 inches). By the time of the Apollo 15 mission, the drive tubes had been redesigned with larger diameters and thin walls. These tubes acquired dust and rock fragments in nearly undisturbed condition. Drive tubes were used to sample lunar regolith (the dust and rocky material covering the Moon's surface) to a depth of 0.6 meters.
The drill core, used on the last Apollo missions, acquired regolith up to 3 meters in depth with good preservation of stratigraphy. These samples contained a very useful record of the cosmic ray history on the Moon. The drill motor provided a rotary/percussive action to penetrate the regolith and worked quite well. Apollo astronaut Dave Scott had great difficulty pulling the first drill core, but altering the drilling technique on later missions greatly facilitated extraction. In operating the drill, astronauts would add sections as needed to lengthen the drill stem . When extracting the drill stem, the sections would be disconnected and capped, then packaged together for the return to Earth.
Sample Transport Containers
The basic box used to transport the samples from the vacuum of the lunar surface to the atmospheric pressure of Earth was carved from a single blockof aluminum and had a triple sealing mechanism consisting of a knife-edgeto-metal seal and two O-ring seals. Two of these boxes were flown on each Apollo mission. Since much more sample material was collected on the later missions, specimens that did not fit into the two boxes were brought back in tote bags.
Apollo astronaut Harrison Schmitt uses a lunar rake to collect discrete rock samples and rock chips less than one inch in size.
Most of the smaller samples were placed into numbered individual sample containers before being placed into the transport boxes or bags. To preserve the pristine lunar dust and fragments, some samples were placed into gas-tight cans sealed with a knife-edge-to-metal sea??l. Many rock and dust samples were placed into numbered Teflon bags with fold-over closures.
Specimen Collection Accessories
A gnomon was a device the astronauts placed on the lunar surface to indicate which way was "up" and provide a color scale. With the gnomon in the pictures taken of ro??cks on the lunar surface, accurate sun angle and rock color could be determined. A spring scale similar to those used for weighing fish was included to estimate the total sample weight before ascent from the Moon. Little use was made of the lens/brush tool that geologists had thought would be needed to dust off the rocks and examine them through a lens.
The early Apollo missions focused on learning how to work in the lunar environment. The later missions encompassed greater sophistication in the collection of specimens, accompanied by the specialization of tools and containers. Over the course of six Apollo landings, the opportunity to adapttools based on experience with the lunar environment was especially seen in the evolution of the drive tubes. |
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