1) tonstein
['tʌnstein]
煤夹矸
1.
Mineralogical characteristics of tonstein in Southwest Shandong Province and its applications;
鲁西南煤夹矸的矿物学特征研究及应用前景
2) coalseam dirt band
煤层夹矸
3) tonstein coal seam
夹矸煤层
1.
Experiment on mining by the air-space blasting in tonstein coal seam;
夹矸煤层采用空气柱间隔装药结构开采的试验研究
4) top coal seam with parting band
含夹矸顶煤
5) The top coal with rock seam
含夹矸层顶煤
6) Coal seam with dirt band
含夹矸层煤层
补充资料：标准煤(见煤当量)
标准煤(见煤当量)
standard coal
、~‘~1人、4《1工兀飞coal)见煤当等
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条