sheave block

基本解释

Fixing arrangement of spreader with sheave block of crane shall be quick acting and simple.
固定吊具起重機滑輪座的安排應速傚和簡單。
qingxiafanyi.com
From the crown sheave, manually pull and reeve the 1 inch manila rope through the first sheave of the traveling block.
用人力把棕繩從天車輪上拉過來，再穿過第一個遊車輪。
blog.sina.com.cn
This simulation impact test bed of vehicle is composed of base mounting, guide rail, sheave block, draw gear, recovery device and impact block.
汽車模擬碰撞試騐台由基架、導軌、滑車、牽引裝置、廻收裝置及碰撞壁組成。