| |||
open and shut valve | |||
bidirectional valve | |||
two way valve | |||
two-way valve | |||
| |||
bidirectional electronic valve |
双 向阀 : 20 phrases in 7 subjects |
Automobiles | 6 |
Aviation | 2 |
Compressors | 2 |
Hydroelectric power stations | 3 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 5 |