“traveling gantry crane”的概念、定义、翻译、参考文献-科学参考

单词	traveling gantry crane
释义	traveling gantry crane [`trav·ǝl·iŋ `gan·trē ´krān] ^ENGINEERING A type of hoisting machine with a bridgelike structure spanning the area over which it operates and running along tracks at ground level.
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