全金属电机和驱动系统，紧急下降，高容量电池，和一个1.5“宽磨损耐起重带。”
All-metal motor and drive system, emergency lowering, high capacity batteries, and a 1.5 "wide fray-resistant lifting strap."
本文介绍了电磁离合器应用于塔式起重机起升机构的扭矩容量计算方法和型号选择原则。
The method of torque capacity calculation and the principle of model selection for electro-magnetic clutch applied in hoist mechanism of tower crane are introduced in this article.
条筒容量的大小与条筒尺寸设计有关，气孔直径起重要作用，只有当其取某一适当值时，条筒容量才达到最大。
Coiler can volume is concerned with coiler can size. The diameter of air vent is a critical factor in designing the can size. Coiler can volume can reach its maximum of some value.
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