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fastener造句
61. The dog chain, the movable end of which is connected with a dog ring by a fastener is connected with the line wheel by a line wheel casing mouth and wound. 62. The zip fastener had long since been wrenched out of them. 63. A slim, pointed piece of metal hammered into material as a fastener. 64. Sadly , the original fastener , invented in 1893 by Whitcomb L. 65. Fastener common failure mode of failure of the assembly has elongated,(Sentence dictionary) fatigue fracture and delayed fracture. 66. This paper introduces the design of pressing formational mould that produces belt fastener of band conveyor in miner. 67. Mainly for spare parts heat treatments and so on metal parts quenching, cyaniding , annealing and tempering uses, especially is suitable for the fastener, the standard letter heat treatment. 68. The specific step and process are introduced in detail with the adoption of this method in the design of the automatic slide fastener assembly machine. 69. Fastener , the most widely used machine element, is the generic term for all types of machine elements used to fasten and connect two or more elements as a whole. 70. Case Hardened : a case hardened fastener is a fastener of ferrous material having a suce which has been made harder than the core.