...绕中心轴转动的轮叫滑轮; (二)、定滑轮 〖活动2〗:演示:定滑轮提物体,归纳定滑轮的概念 知识点 2:定滑轮(fixed pulley):滑轮使用时, 的滑 轮叫定滑轮; 〖活动3〗:探究使用定滑轮的特点: ⑴装配定滑轮,竖直向下拉弹簧秤,使钩码保持平衡状态,读...
基于882个网页-相关网页
The EOD Rope hook set is composed of hook, rope, fixed pulley, adjustable lever, clamp, multi-function clip and disk.
排爆绳钩组是由钩、绳、定滑轮、可调节杆、卡紧器、多功能工作夹、吸盘等多种器材组成。
The ends of the wire ropes are respectively connected on suspension cages through fixed pulley blocks respectively installed on a headframe.
钢丝绳的线头各自通过安装在井架上的定滑轮组,又各自连接到吊笼上。
The fixed pulley is rotated by a cranking bar to wind the steel cable, a spare tire can be lifted, and the spare tire can be put down stably by rotating in reversal the cranking bar.
使用摇把转动定滑轮圈绕钢丝索,即可提升备胎,反转摇把即可平稳降下备胎。
应用推荐