| 单词 |
clamshell bucket |
| 释义 |
clamshell bucket clamshell bucket[′klam‚shel ‚bək·ət] (mechanical engineering) A two-sided bucket used in a type of excavator to dig in a vertical direction; the bucket is dropped while its leaves are open and digs as they close. Also known as clamshell grab. |
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