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impact crater是什么意思

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impact crater 是什么意思

中文翻译与英英解释

【地质学;地理学】撞击圆坑,陨石坑。
impact:    n. 碰撞;冲击(力);(火箭的)降落[着陆];【军事】 ...
crater:    n. 1.火山口。 2.〔C-〕【天文学】巨爵座;(月球 ...
An impact crater is an approximately circular depression in the surface of a planet, moon or other solid body in the Solar System, formed by the hypervelocity impact of a smaller body with the surface. In contrast to volcanic craters, which result from explosion or internal collapse,Basaltic Volcanism Study Project.

例句与用法

1.Often icy moons in the outer solar system boast large impact craters
通常太阳系外围冰冷的月亮上有比较大的碰撞坑。

2.The age of each flow can then be determined by measuring its density of impact craters
岩浆流的个别年龄可以藉测量其撞击陨石坑的密度而决定。

3.Impact craters have some special features , for example , there are some ray systems and central mountains
撞击坑典型的特徵包括辐射纹和坑中心的小山丘。

4.That indicates that scattered rocks associated with young impact craters are more likely the causes of the high cpr
这表明与年轻的撞击坑相关的散布碎石很可能是高cpr的原因。

5.On a simulated lunar surface , visitors can create impact craters by dropping " meteorites " . a cross - section of a meteorite can also be examined through a microscope in this area
观众可在一个模拟的月球表面投下陨石,看环形山如何形成又可利用显微镜观察一块陨石的横切面。

6.The many impact craters that have pocked our moon and earth reveal our solar system can be like a shooting gallery , with asteroids and comets regularly striking planets and their companions
我们的月亮和地球上密密麻麻的碰撞环形山可能和射击场相似,小行星和彗星经常碰撞行星及其伴星。

7.Appearing at first glance to resemble the human brain , the natural phenomena that created the unusual texture on the floor of this martian impact crater are currently under investigation
乍看之下,这个火星陨石坑的底部很像是人类的脑部组织,不过造成这个不寻常纹路之自然现象为何,现在仍然在研究之中。

8.Despite its flimsiness , tempel 1 has an almost planetlike surface , covered with what appear to be impact craters ( the first ever observed on a comet ) , cliffs , and distinct layers
除了结构松散之外,谭普一号有著近乎行星般的表面,其上满布著像是冲撞后所留下的坑洞(这在彗星上是首次被观察到) 、断崖和多层次结构。

9.Dark patches of ancient terrain are broken up by swaths of brighter , younger material , and the entire icy surface is peppered by more recent impact craters that have splashed fresh , bright ice across the surface
黑色古老地形的碎片被更明亮、更新物质分割开,整个冰封的表面不断的被更新的陨石砸出的新鲜、明亮的冰更新着。

10.The topographic map produced by clementine ' s laser ranger revealed the astounding dimensions of the spa basin , which stretches 2 , 600 kilometers across , making it the largest impact crater in the entire solar system
克莱门蒂号的雷射测距仪制作的地形图揭露出spa盆地惊人的大小:宽达2600公里,是整个太阳系最大的撞击陨石坑。

 
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