A block and tackle are known to be a system of two pulleys hung via a rope or thread. In fact, two or more pulleys are hung with the same string that is threaded along with them. The primary goal is to lift heavy blocks or items that are unable to be lifted otherwise.Want to ...
1 structural model of pulley system | translation 1 : 2 structural model of pulley system | translation 1 : 3 structural model of pulley system | translation 1 : 4 input data for block and tackle pulley system correct and incorrect modeling of boundary surface of contact solid finished ...
A block and tackle or only tackle is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads.The pulleys
权威英汉双解 英汉 英英 网络释义 block-and-tackle n. 1. 滑轮组;滑车组a piece of equipment for lifting heavy objects, which works by a system of ropes and pulleys (= small wheels around which the ropes are stretched) 释义: 全部,复滑车,滑车组...
3.A mold or form on which an item is shaped or displayed:a hat block. 4.A substance, such as wood or stone, that has been prepared for engraving. 5. a.A pulley or a system of pulleys set in a casing. b.An engine block. ...
Once the system is riven, tie a knot at the end of the rope to secure it. To use the block and tackle, fix the standing block to a point, and attach the moving block to whatever you want to move. By pulling on the rope, you will shorten the distance between the two pulleys becau...
I finally hoisted him up with a block and tackle. 我最终用滑轮组把他拉了上去。 —— 柯林斯例句 2. A pulley or a system of pulleys set in a casing. 滑轮,滑轮组安装在机械外壳中的滑轮或滑轮组。 —— 给力词典精选 3. Tension holds the belt in the pulleys. ...
Self-braking pulley mechanism for controlling the rate of movement of a boom on a sailing boat involves passing the sheet through a set of three nylon (polyamide) pulleys arranged in a triangular pattern so that excess tension on the sheet causes the pulleys to converge and automatically apply ...
来自 EBSCO 喜欢 0 阅读量: 3 摘要: A definition of the term "block and tackle" is presented. It refers to a device consisting of a fixed pulley and a movable one, in which the rope attached to the load is passed over the fixed pulley, around the movable pulley, then back around ...
(on land, wheel chocks prevent vehicles from rolling), while ablock and tacklesystem combines pulleys, often in cases called "blocks," and rope or cable to providemechanical advantagefor hoisting and hauling. Using a block and tackle to hoist a sail on a traditional sailing ship, there’s ...