- 相关词组
- weighted safety valve重量安全阀
- orifice control valve锐孔调节阀;孔板节流阀
- perforation of cardiac valve心瓣膜穿孔
- spherical valven.球形阀;
- yield valve屈服阀
- heart valve prosthesis人工心脏瓣膜
- whistler valve笛阀
- ostial valve心门瓣
- proportional valve比例阀，定量阀，配合阀;
- compression release valve减压阀;
- globe valve球心阀;
- diaphragm valve膜板阀;隔膜阀;针阀;给水调整阀;
- pressure reduction valve减压阀;
- wellhead control valve井口控制阀
- seat valve座阀;
- regulating valve控制阀，调节阀;
- drain valve排水阀，泄水阀;
- tungar valve吞加整流管
- master and block valve主油管堵塞阀
- valve port阀口;
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