guide hole

基本解釋

Discussing several ordinary processing technologies of valve seat ring and valve stem guide hole of cylinder head now.
對目前氣缸蓋氣門座圈和導管孔的幾種一般加工工藝進行討論。
Analyzing the many factors of affecting the processing precision of valve seat ring and valve stem guide hole of cylinder head.
對影響氣缸蓋氣門座圈和氣門導管孔的加工精度的諸多因素進行分析。
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.
一種快速抽排的導流管，包括管體、多孔管、導孔管、螺旋葉片組、套孔蓋、二軸承；
ip.com

But when White returned to the States for the summer to guide in Jackson Hole, Wyo.
FORBES: Magazine Article