| 单词 | bucket-ladder dredge |
| 释义 | bucket-ladder dredge [`bǝk·ǝt ´lad·ǝr ´drej] MECHANICAL ENGINEERING A dredge whose digging mechanism consists of a ladderlike truss on the periphery of which is attached an endless chain riding on sprocket wheels and carrying attached buckets. Also known as bucket ladder; bucket-line dredge; ladder-bucket dredge; ladder dredge. |
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