“crane with double lever jib”的概念、定义、翻译、参考文献-科学参考

单词	crane with double lever jib
释义	crane with double lever jib 四连杆伸臂起重机四连杆式伸臂起重机
随便看	worm grinder worm grinding machine worm hob worm hobbing machine wormhole worm housing worming wormkalk worm knotter worm lock worm mesh worm milling cutter worm milling machine worm pipe worm-pipe worm press worm pulley block worm rack worm rack type driving device worm recirculating ball nut worm reduction box worm reduction gear worm reduction gear unit worm reverse gear worm roll

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