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hand hole
| cover
| hand hole | |
| archit. | 手孔; 检修 孔; 手工凿岩 |
| compr. | 手孔 |
| dril. | 手 孔 |
| el. | 检查孔 |
| oil transp. oil.proc. | 手 孔; 注入孔 |
| covering | |
| environ. | 覆盖物 |
| |||
| 地下电缆手孔; 检修装配，注人孔; 手工凿岩掏槽 | |||
| 观察孔; 检修孔; 装配孔 | |||
| 手孔 | |||
| 手探孔 | |||
| 检查孔 | |||
| 手【探】孔; 注入孔 | |||
| 小型检查孔; 检查用手孔 | |||
| |||
| 探孔; 手孔; 注入口 | |||
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hand hole cover : 5 phrases in 3 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Technology | 3 |
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