Impact parameter
[化] 碰撞参量; 撞击参数
🧩 词语组成解析
🗣️ 情景例句
I can't figure out why she said so.
我不能理解她为什么这样说。
Will you take that library book back for me?
你能帮我把书还回图书馆吗？
it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth.
在月球上加速到每秒1。5英里比在地球上所用能源要少得多。