guide hole

基本解释

Discussing several ordinary processing technologies of valve seat ring and valve stem guide hole of cylinder head now.
对目前气缸盖气门座圈和导管孔的几种一般加工工艺进行讨论。
Analyzing the many factors of affecting the processing precision of valve seat ring and valve stem guide hole of cylinder head.
对影响气缸盖气门座圈和气门导管孔的加工精度的诸多因素进行分析。
A draft tube for quick exhaust comprises a tube body, a perforated pipe, a guide hole tube, a helical blade set, a trepanning cover and two bearings.
一种快速抽排的导流管，包括管体、多孔管、导孔管、螺旋叶片组、套孔盖、二轴承；
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But when White returned to the States for the summer to guide in Jackson Hole, Wyo.
FORBES: Magazine Article