无烟煤矿 meaning in Chinese

anthracite mine

Not until 1916 did the umw finally win recognition from the anthracite operators .
直到1916年，美国矿工联合会才终于得到无烟煤矿资方承认。
In the anthracite coal strike of 1902, he was prepared to go the full limit in asserting the public interest .
在1902年无烟煤矿罢工中，他准备竭尽全力维护公共利益。
Investigations of raw material in hard - coal - mining - microscopical examination of hard coal , coke and briquettes - part 3 : maceral analysis on particulated blocks
无烟煤矿原材料的考察研究.煤焦碳和煤块显微试验
Investigations of raw material in hard - coal - mining - microscopical examination of hard coal , coke and briquettes - part 1 : terms , survey of processes and their applications
无烟煤矿原材料的考察研究.无烟煤焦碳和煤块显微检
Investigations of raw material in hard - coal - mining - microscopical examination of hard coal , coke and briquettes - part 2 : preparation of polished surface from lump material and particulate blocks
无烟煤矿原材料的考察研究.煤焦碳和煤块显微试验