Orbital electrons
[化] 轨道电子; 核外电子; 壳层电子
🧩 词语组成解析
orbital
['ɔ:bitl]
adj. 轨道的;眼窝的;
n. 电子( electron的复数形式 )
🗣️ 情景例句
What goes into my apple pie besides apples?
除了苹果以外 我的派还要放什么呢？
It's too expensive for me.
对于我来说太贵了。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。