Colloid degeneration
[医] 胶样变性
🧩 词语组成解析
colloid
[['kɔlɔid]]
n. 胶体, 胶质, 胶态\\na. 胶态的, 胶质的
degeneration
[[diˌdʒenə'reiʃən]]
n. 退化, 恶化, 堕落\\n[化] 简并性
🗣️ 情景例句
I want to see other people.
我想换换别人。
Well, goodbye. See you soon.
那么，再见。后会有期。
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。