| |||
mercury pressure gage; mercury pressure gauge | |||
mercury gage | |||
mercury gauge; mercury manometer | |||
mercurial gauge | |||
mercurial pressure ga ge; mercurial pressure gau ge | |||
mercuric pressure gage; mercuric pressure gauge |
水银 压力 计 : 3 phrases in 2 subjects |
Refrigeration | 1 |
Technology | 2 |