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。
Furthermore, the paper also describes the charge shapes, the differential time and the guide hole stemming.
对药包形态、微差时间、导硐堵塞也作了描述。
The utility model discloses a novel vehicle-mounted head pipe, the sidewall of which is provided with at least one line guide hole for wiring harness to get through.
本实用新型公开了一种新型车用头管,头管侧壁至少设有一个供线束穿设的导线孔。