screw thread 螺丝牙 ; 丝扣 ; 罗纹 ; 接口规格
screw thread micrometer [机] 螺纹千分尺 ; 螺旋测微计 ; 螺纹分厘卡 ; 罗纹量具
screw-thread steel 螺纹钢 ; 螺纹钢筋 ; 布料机
anchor screw thread 锚式螺纹 ; 锚式罗纹
screw thread cutting 螺纹切削法 ; 罗纹切削法 ; 螺纹
inch screw thread 英制螺纹
unified screw thread 统一标准螺纹 ; 统一螺纹
Screw thread template 螺纹样板 ; 罗纹样板
Whitworth screw thread 惠氏螺纹 ; 惠氏标准螺纹
By using sub-problem method, the optimum parameters of the screw-thread are obtained. By optimizing, not only reduce the maximum load distribution, but also lengthen the working life and increase the working efficiency of the screw-thread connection.
以影响螺纹形状的齿高,螺距,切削角度以及齿数作为设计变量,采用零阶方法实现了法兰电熔接头的结构优化,既降低了最大螺牙载荷,又提高了螺牙载荷分布的均匀性,从而延长螺纹联接的工作寿命,提高其工作效率。
参考来源 - 法兰电熔接头的有限元分析和优化设计·2,447,543篇论文数据，部分数据来源于NoteExpress
N the helical ridge on a screw formed by a die or lathe tool 螺纹
A type of screw and nut with coarse pitch was applied to realize thread core demoulding automatically.
采用螺距粗的螺丝和螺母实现螺纹型芯自动脱模。
there has no screw thread on the installation hole on head of water-cooling. It's difficult to install it by the screw tap which along the products.
产品有以下缺陷：水冷头上的安装孔没有螺纹，用配带的自攻螺丝安装非常困难。
Production costs born by Party B: Party B shall bear the extrusion nozzle mould cost 3000 Yuan，and the cost of plastics screw thread of 4000 Yuan.
乙方负担的制作费用：乙方承担挤出嘴模具费3000元，塑料丝扣磨具费4000元。
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