hydraulic packer水力: waterpower; hydraulic power封: close; seal隔: partition; separate器: implement; utensil; ware双管水力封隔器: dual hydrostatic packer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:水力封隔器，即可在微信中查询翻译
