“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	pumping irrigation and drainage in China pumping irrigation and drainage of planning pumping lamp pumping Lemma pumping lemma pumping level pumping light pumping loss pumping mechanism pumping mechanism of the heart pumping process pumping resistance pumping source pumping start mode of pumped-storage unit pumping station pumping station with axial-flow pumps pumping station with centrifugal pumps pumping station with mixed flow pumps pumping station with submersible pumps pumping station with tubular pumps pumping station with turbine pumps pumping station with well pumps pumping system pumping test pumping unit

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