切: correspond to; be close to环: ring; hoop槽: trough; manger切环: cut环槽: annular; lantern ring groove; ring slot剪切环: shearing ring切环下: cutaway直切环: stepped ring环槽侧: ring groove side环槽底: ring groove bottom环槽垫: ring groove pad扣环槽: retaining ring groove循环槽: circulation groove; recirculating tank; reserve tank分腿切环下: front cutaway切环后再握: cut and cateh切环检验: ring section examination切向切环: tangential cut ring岩心切环: core cutter顶活塞环槽: top ring groove; top-ring groove端环槽脊: top land环槽侧磨损: ring groove side wear环槽滚子: grooved roll环槽滑轮: grooved pulley环槽绝缘体: grooved insulator环槽扩大: enlargement of ring grooves