 |
| |||
| 回收凝汽阀; 回水阱 | |||
| 回水弯 (管); 回水隔气弯管; 回水隔气具; 回水隔汽具 | |||
|
return trap : 20 phrases in 5 subjects |
| Architecture | 3 |
| Chemistry | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Technology | 14 |
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