 |
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| touch time | |||
| contact time | |||
| contact period | |||
| duration of contact; exposure time; period of contact | |||
| 接触时间: 22 phrases in 11 subjects |
| Architecture | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 3 |
| Mining | 2 |
| Oil / petroleum | 1 |
| Oil processing plants | 2 |
| Rail transport | 1 |
| Sports | 1 |
| Technology | 7 |
| Wind Energy | 2 |