block and tackle 美 英 n.复滑车 网络滑车组 复数:blocks and tackles 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) ...
Block and tackle, combination of a flexible rope, or cable, and pulleys commonly used to augment pulling force; it can be used to lift heavy weights or to exert large forces in any direction. In the Figure there are four freely rotating pulleys, two on t
If you have ever looked at the end of a crane, or if you have ever used an engine hoist or a come-along, or if you have ever looked at the rigging on a sailboat, then you have seen a block and tackle at work. A block and tackle is an arrangement of rope and pulleys ...
block and tackle- pulley blocks with associated rope or cable hoist- lifting device for raising heavy or cumbersome objects pulley,pulley block,pulley-block,block- 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 block and tackle is an assembly of pulley blocks and rope or cables that are set up to decrease the effort needed to haul or hoist heavy loads. Each block has one or more pulley. Thread the rope, alternating between the pulley attached to the block on the object you want to move an...
Web-Strap Hoist Deluxe with Removable Handle product number KN1600PEX KN1600PEX Activating this element will cause content on the page to be updated. Compare Block and Tackle with Cat. No. 268 Block product number 1802-30S 1802-30S Activating this element will cause content on the page ...
block and tackle 听听怎么读 英[blɔk ænd ˈtækl] 美[blɑk ənd ˈtækəl] 是什么意思 n. 滑轮,滑车设备; 英英释义 block and tackle n.pulley blocks with associated rope or cable 学习怎么用 权威例句 Block and tackle...
block and tackle- pulley blocks with associated rope or cable hoist- lifting device for raising heavy or cumbersome objects pulley,pulley block,pulley-block,block- 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 ...
Hoist, in particular chains block and tackle, with axially pressure brakeSCHROEDER CHARLES S
High quality hand chain pulling hoist and tackle 1 tonne Product Parameters What is a Chain Block? A Chain Block (also known as a hand chain hoist) is a mechanism used to lift and lower heavy loads using a chain. Chain blocks contain two wheels which the chain ...