凹口是什么意思_凹口用英语怎么说_凹口的翻译_凹口翻译成_凹口的中文意思_凹口怎么读,凹口的读音,凹口的用法,凹口的例句

A split or indentation between two parts, as of the chin.

两部分间(如下巴)的裂隙或凹口.

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To make notches , grooves, or holes in ( wood, for example ) for the purpose of mortising.

中间做成凹痕:在 ( 木头 ) 上作槽口 、 凹口或眼, 使其能榫固.

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The correct method of measuring the indentation diameter, d, is shown in the figure.

正确测量凹口直径的方法如图所示.

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Oil control ring gap to be located 30 degrees to the left of combustion chamber recess.

控油环间隙位于燃烧室凹口的左30度.

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