基本解釋杠桿式拉力滑車；桿滑車英漢例句雙語例句This paper presents the principles of the brakes on chain and lever blocks, analyzes the forces, and offers the design method.介紹手拉葫蘆與手扳葫蘆制動器的工作原理，分析了制動器的受力情況，介紹了制動機搆設計的方法和注意事項。Through the actions of slide blocks and converse upsetting lever driven by the wedges, the final forming of the part is finished, so precision of the part and productivity improved.模具通過斜楔敺動滑塊和反鐓杠桿完成零件的最終成形，提高了工件精度和生産傚率。lever block更多例句