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1)  hollow regular cone
凹形正圆锥
1.
It is reported that the quantity of a hollow regular cone divided by the quantities of contour generations on it is the quantity of the depth that one contour line adjoins the next one,and introduces the making method of the hollow regular cone and its application.
凹形正圆锥的高除以等高线数为相邻等高线的深度差值 介绍了凹形正圆锥的制作方法及应
2)  conical orthomorphic projection
正形圆锥投影
3)  polyconic conforming projection
正形多圆锥投影
4)  taper matrix
锥形凹模
1.
Introduce the forming traits and crafts of a hemisphere workpiece and design a drawing die for a hemisphere workpiece which is effective,and give a brief account for the features of a taper matrix and a taper blank holder.
介绍了半球形工件的成形特性及工艺性,设计了一种行之有效的半球形工件的拉伸模,并简述了锥形凹模及锥形压边圈的特点。
5)  circular dies
圆形凹模
6)  cove [英][kəʊv]  [美][kov]
凹圆形
补充资料:Z型圆锥形橡胶减震器
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性质: 橡胶减震器的一种。外形呈圆锥形。由上下两个倒喇叭形金属骨架中间夹橡胶模压而成。产品三向等频,大变形,结构紧凑,质量轻。用于各种机械、仪表、机床、设备等方面。

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