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- 方头凹端紧定螺钉Square set screws with cup point
- 方头倒角端紧定螺钉Square set screws with chamfered end
- 方头长圆柱端紧定螺钉Square set screws with long dog point
- 内internal
- 定to set
- 方头长圆柱球面端紧定螺钉Square set screws with long dog point and rounded end
- 方just
- 内的inner
- 三头紧定螺钉扳手triple end set screw wrench
- 外圆内方round outside but spuare inside; outwardly gentle but inwardly stern
- 内网Intranet
- 内置internal
- 钻夹头紧松扳手On the Use of Drill Chuck to Fasten and Loosen Spanner
- 第三方third party
- 她把头紧挨在他的肩膀上。Nuzzle She nuzzledher head against his shoulder.
- 内方toward the interior
- 抽油机驴头紧固形式的改进The Improvement of Fixing for Donkey Head of Pumping Unit
- 内方差internal variance
- 开槽锥端紧定螺钉Slotted set screws with cone point
- 内方外圆square internally and round externally
