 |
| |||
| 联管轴器 | |||
| 联管器〔节〕 | |||
| 由壬连接的短节 | |||
| 管接头; 联轴器 | |||
| 活接头 | |||
| 联管器; 管接合; 联管接 | |||
| 联轴节; 管连接; 联管节 | |||
|
union coupling : 8 phrases in 2 subjects |
| Engineering geology | 1 |
| Technology | 7 |
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