“overhead shovel”的概念、定义、翻译、参考文献-科学参考

单词	overhead shovel
释义	overhead shovel [`ō·vǝr´hed `shǝv·ǝl] ^{MECHANICAL ENGINEERING} A tractor which digs with a shovel at its front end, swings the shovel rearward overhead, and dumps the shovel at its rear end.
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