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to phrases
煤炭技术
environ.
coal technology
The processing of coal to make gaseous and liquid fuels
(为制造气体和液体燃料,处理煤的过程。)
tech.
colliery engineering
煤炭 技 术
:
6 phrases
in 3 subjects
Agriculture
1
Environment
2
Explosives and Explosive Ordnance Disposal
3
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