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碎煤; 煤粉; 车轴或轴承上流出的黑油污; 拱架; 拱形顶板; 狭〔峡〕谷冲沟; 丘陵边河谷 (盆地) | |||
煤末; 煤炭; 煤屑; 煤渣 | |||
库姆容量单位 | |||
煤烟灰 | |||
库姆容量单位,=4普式耳 | |||
煤烟; 炭黑; 锯屑 | |||
煤灰; 拱形顶板; 深海谷 | |||
English thesaurus | |||
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Canadian Ozone Observers Manual | |||
chemically oxidizable organic matter |
coom : 5 phrases in 2 subjects |
Architecture | 1 |
Technology | 4 |