- underhole
- 底部掏槽
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
underhole
Look at other dictionaries:
underhole — verb To cut away or mine out the lower portion of a coal seam or a part of the underelay so as to win or get the overlying coal … Wiktionary
underhole — | ̷ ̷ ̷ ̷| ̷ ̷ transitive verb Etymology: under (I) + hole : to cut away the lower portion of or to cut under (a coal seam) … Useful english dictionary
