您要查找的是不是：
- 压下阀盖，确保适当的对齐。Press down on the cover to assure proper alignment.
- 下lower
- 下一next
- 下阀杆lower valve rod
- 阀盖valve deck
- 一下(adj) one time; once
- 查找下一个find next
- 下阀芯bottom spool
- 下的subaltern
- 阀体,阀盖和楔板材质符合美国材料试验协会aSTM B62标准青铜。"Valve body, bonnet and wedge are to be of bronze aSTM B 62."
- 下一个next
- 下页overleaf
- 圆形外螺纹和内螺纹阀盖连接是自行对准调整并且封装的垫圈。The circular male and female bonnet joint is self-aligning and encapsulates the gasket.
- 下周next week
- 泵阀盖座pump-valve cage
- 下阀片lower disc
- 滑阀盖Valve Cap
- 下阀杆密封lower stem seal
- 操纵阀盖垫密片application valve cover gasket
- 操作阀盖operating valve cap
