“derrick crane”的概念、定义、翻译、参考文献-科学参考

单词	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。
随便看	Totem and Taboo: Resemblances Between the Psychic Lives of Savages and Neurotics Totem and Taboo: Some Points of Agreement between the Mental Lives of Savages and Neurotics Totem Pole To the Lighthouse To the Oak totient constant totient function totient summatory function totient valence function totipotency totipotent cell totipotent hematopoietic stem cell totipotent stem cell totipotent stem cell，TSC totitive Totonacos Totonicapán Toto Sudarto Bachtiar Totto-chan: The Little Girl at the Window Tottori Tottori-ken Touat Oasis Toubkal, Jebel Toubkal National Park touch

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