... long-duration test || 连续负荷试验,耐久试验 long-flame run-of-mine gas coal || 长焰原煤 long-focal length lens || 长焦距物镜 ...
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long-flame run-of-mine gas coal 长焰原煤
Coal-mine gas 煤矿瓦斯
coal mine gas 煤矿瓦斯 ; 瓦斯
gas of coal mine 煤矿瓦斯
Coal Mine Gas Drainage 煤矿瓦斯抽放
Coal Mine Gas Prediction 煤矿瓦斯预测
coal mine gas hydrate 瓦斯水合物
low-gas coal mine 低瓦斯煤矿
Pressure mounted Monday to launch a search for 29 men trapped in a New Zealand coal mine for three days since a gas explosion, but the mine remained too dangerous to enter.
到周一为止,自新西兰煤矿毒气爆炸已经过去三天,关于营救被困29名矿工的舆论压力不断增加,但由于矿井内毒气太重而无法施救。
At least 14 miners are trapped underground at a coal mine in Mexico following a gas explosion. It happened in the northern state of Coahuila.
墨西哥北部科阿韦拉州一座煤矿发生瓦斯爆炸,造成至少14名矿工被困井下。
27 people were killed and 6 injured Thursday morning in a gas explosion at a coal mine in Fuxin, Liaoning.
4日上午9时,辽宁省阜新市清河门区河西镇第八煤矿发生一起瓦斯爆炸事故,造成27人死亡。
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