单词 | shortwall coal cutter |
释义 | shortwall coal cutter [`shȯrt´wȯl `kōl ´kǝd·ǝr] MINING ENGINEERING A machine for undercutting coal which has a long, rigid chain jib fixed in relation to the main body of the machine and which cuts across a heading from right to left, being drawn across by means of a steel-wire rope. |
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