英语词汇“keystone piston ring”的读音、翻译、释义、用法及例句-开邑网

词汇	keystone piston ring
释义	keystone piston ringkeystone piston ring1.■梯形断面活塞环
随便看	management of signet management of staff and workers management of standardization management of talented people management of taxation management of teachers management of tools and equipment management of trauma management of umbilical cord management of underground minestopes management of vehicle kilometrage quota management of voltage quality management of water industry management of water resources development and utilization management of weeds management of wholesale enterprises management of working groups management operating system management package management participation management performance management philosophy management plan management plan area management planning and control

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