单词 | track cable scraper |
释义 | track cable scraper [`trak ´kā·bǝl `skrāp·ǝr] MINING ENGINEERING A type of excavator that uses a bottomless scraper bucket which conveys its load over the ground and is operated by a two-drum hoist which controls a track cable that spans the working area and a haulage cable that leads to the front of the bucket. |
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