head opening翻译

head opening的基本解释

读音: 美: 英:

封头开孔：指在容器或管道的封头上进行开孔的过程或方法。

例句

With the pumpkin resting on the table, hole uppermost, I bent over and pressed my head against the opening.南瓜放在桌子上，洞口在最上面，我弯下腰，把头压在洞口。
I could see him through the opening nodding his head, saying, "Not yet."我可以透过窗户看到他点头说：“还没有。”
The differential head can be plotted for a number of different values of the gate opening.可以针对多个不同的门开口值绘制差动头。

短语

cylinder head opening 缸盖开孔
self opening die head 自动开合螺丝板牙切头
head and shell opening 封头和壳体开孔
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