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derrick crane
释义
derrick crane
Encyclopedia
工学
〔轻小型起重设备〕
释
derrick crane
桅杆起重机
以桅杆为承载构件,臂架下端与桅杆下部铰接,上端通过钢丝绳与桅杆相连的简易臂架型起重机。俗称把杆、拔杆。
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jaundice
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Java enterprise edition, JEE
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