four-ball extreme pressure tester
四球试验机
four-ball bearing apparatus
暂无补充释义。
相关词条
four-ball instrument
four-ball tester【试验】
four-ball extreme pressure tester
four-ball tester【油气】
four-ball tester
four-ball machine
four-ball bearing apparatus
暂无补充释义。
four-ball extreme pressure tester
four-ball instrument
four-ball tester【试验】
four-ball extreme pressure tester
four-ball tester【油气】
four-ball tester
four-ball machine