impact crater中文什么意思

【地质学；地理学】撞击圆坑，陨石坑。

• impact:    n. 碰撞；冲击(力)；(火箭的)降 ...
• crater:    n. 1.火山口。 2.〔C-〕【天 ...
• meteorite impact crater:    陨石冲击坑

例句与用法

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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。

百科释义

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.