英语词汇head opening怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	head opening
释义	head opening 简明释义封头开孔：指在容器或管道的封头上进行开孔的过程或方法。网络释义 1 ?封头开孔 ... head into shell 封头接入壳体 head opening 封头开孔 head plate 封头板; 顶板 ... 短语 1 cylinder head opening 缸盖开孔 2 self opening die head 自动开合螺丝板牙切头 3 head and shell opening 封头和壳体开孔双语例句 1 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。 2 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。” 3 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。
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