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| 拼合管 | |||
| 对开式钻管 (取土样用); 对开管口; 分叉管; 半合管 | |||
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| 对开管口 | |||
| split- tube: 32 phrases in 10 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Desert science | 1 |
| Drilling | 1 |
| Electronics | 1 |
| Engineering geology | 4 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |
| Refrigeration | 1 |
| Technology | 19 |
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