曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
动滑轮组放大回绳轮行程满足钢丝绳使用初期伸长的需要。
Move a pulley set enlarge to return to rope round the route of travel satisfies a steel wire rope to use early elongation of demand.
链动滑轮，吊车专用电动滑板，吊车专用手动滑板，悬臂起重机，铁路养路器械。
Chain blocks, crane - use electrical saddles, crane - use manual saddles, jib cranes, railroad maintenance equipment.
无游梁塔架式胶带传动长冲程抽油机由曲柄-连杆-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。
The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.
无游梁塔架式胶带传动长冲程抽油机由曲柄-连杆-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。
The tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.
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