尽管没有新煤矿投产，但 Tribnia 每个矿工的煤炭产量是五年前的两倍。
Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.
这台发动机帮助解决了煤矿地下水的排放问题，并增加了其他地方蒸汽机所需的煤炭产量。
The engine helped solve the problem of draining coal mines of groundwater and increased the production of coal needed to power steam engines elsewhere.
他们常常少报他们的煤炭产量。
应用推荐