High vacuum valve
[化] 高真空阀
🧩 词语组成解析
high
[haɪ]
adj. 高的;高尚的，崇高的;高音调的;高级的，高等的;
adv. （程度等）高地;高价地;奢侈地;
n. 高处，高位;[气象学]高气压;高压地带;高水平;
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
The film touched our hearts.
那部影片打动了我们。
How long will it take me to get there?
到那儿要多长时间？
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。