基本解釋滑車滑輪同根派生 pulley-sheave相關(guān)詞英漢例句pulley sheave 滑車滑輪Our flag is raised to the top of a pole by a rope and two pulley. 我們的旗幟被用一根繩子和兩個滑輪升到了竿頂。He drew a sheaf of papers from his breast pocket. 他從上衣口袋里抽出一札文件。The speaker had a sheaf of notes on the desk in front of him. 演講者在他面前的桌子上放著一疊筆記。The lifting device is a system of rope and pulley. 這種起重裝置是由纜索和滑輪組成的。pulley-sheave更多例句