double-sided four-point press
四点方位
four-point bearing【水运】
暂无补充释义。
相关词条
four-point contact ball bearing【机】
four-point assay
four-point switch
four-point bearing【水运】
暂无补充释义。
double-sided four-point press
four-point contact ball bearing【机】
four-point assay
four-point switch