metering piston sleeve计量: calculate; estimate; measure活塞: plunger; stop; bibb cock; bi ...衬: line; place sth. underneath筒: a section of thick bamboo柱塞衬筒: plunger bushing下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:计量活塞衬筒，即可在微信中查询翻译
