通过测坑定位试验，研究了茭白田坑面水和渗漏水中氮素变化动态和流失规律。
The dynamic distribution and fate of nitrogen species in the surface-water and leaking-water of simulated water bamboo fields were evaluated by the leaching-pond orientation experiments.
当彗星或者其他小行星携带的水着陆在阳光明媚的坑点时，水直接气化。如果落在背阴一面，水就会结冰，不清楚什么时候解冻。
When water lands in sunny spots, perhaps carried by comets or asteroids, the water transforms directly into gas; if it lands in shadow, the water freezes and can remain indefinitely.
这架名为“智能1号”的探测飞船的撞月速度为每秒2公里。按照此速度，这次撞击预计会在月球表面留下一个直径3米、深10米的坑，而且会在月面激起几公里高的尘埃。
Hitting at 2 kilometers per second, the impact of the SMART-1 spacecraft was expected to leave a 3-meter-by-10-meter crater and send dust kilometers above the surface.
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