释义 |
pulley blockS短语¹⁴⁴⁹⁷²⁺² 基本英英近义反义例句例句 n.滑轮组 机械设备机械运动
Noun: a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope近义词 block街区pulley滑车pulley-block滑轮组, 滑车组, 手拉… 用作名词Crevasse rescue is one of the more complicated mountaineering techniques, sometimes requiring pulley systems and multiple haul lines.裂缝救援是一项更副复杂一些的登山技术,有时候需要滑轮组和多组拖曳绳。 Equivalent triangle structure is constructed with hinged bar elements to precisely simulate the effect of wire rope pulley block in the finite element analysis of structure of construction machines. 在工程机械结构有限元分析中,采用铰接杆单元构造等效三角结构,准确的模拟钢绳滑轮组的作用。 cnki It can lift weight through pulley block and lifting hook installed on davit. 通过吊臂上装的滑轮组和吊钩,可吊重; www.360doc.com This paper puts forward an optimal numerical method of determining the compensation point in the design of a crane with compensation arm of pulley block. 提出了在滑轮组补偿臂架起重机变幅机构设计中确定补偿点的最优数值解法。 dictall |