一般息止间隙的平均值约为A.3~4mm B.4~5mm C.1~2mm D.2~3mm E.5~6mm

admin2020-12-24  13

问题 一般息止间隙的平均值约为

选项 A.3~4mm
B.4~5mm
C.1~2mm
D.2~3mm
E.5~6mm

答案D

解析
转载请注明原文地址:https://ti.zuoweng.com/ti/KZpCKKKQ
相关试题推荐