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1)  vanish cone angle
螺尾锥角
2)  end threaded taper pin
螺尾锥销
3)  boattail angle
尾锥角
1.
On condition that the shape of front-body of projectile is fixed and the air density is constant, a method is put forward to determine the optimal boattail angle with muzzle Mach number and vertex point Mach number of trajectory.
在弹丸前体外形和外界大气密度不变的条件下,提出了利用弹丸炮口马赫数和顶点马赫数确定旋转弹丸最佳尾锥角的方法。
2.
On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
用近似方法分析了超音速弹丸尾部和底部流动,在前体外形不变的条件下,得到了最佳尾雏角与弹丸超音速飞行区间的关系式,质点弹道计算结果表明,最佳尾锥角的确定方法是合理和有效的,而且尾锥角选取的差异将会引起射程等弹道参量的显著变化。
4)  helix cone angle
螺旋锥角
1.
Relation of variation between helix cone angle and the lowest safety factor revealed that when guiding helix bit was under pressure,the safety factor increased with the helix cone angle enlarging simultaneously,and would reduce at a certain value.
从螺旋锥角与最低安全系数变化关系中得出,当引导螺旋钻头承压一定时,其安全系数随着螺旋锥角增大而增大,但增大到一定值时又随之减小。
5)  taper screw with triangle thread
三角形锥螺纹
1.
Especially introduces a calculation method of connecting strength of taper screw with buttress thread and a comparison between taper screw with buttress thread and taper screw with triangle thread in strength of supporting power.
介绍了螺纹的种类和分类方法以及斜梯形锥螺纹的主要应用场合,并着重介绍了斜梯形锥螺纹联接强度的计算方法、斜梯形锥螺纹与三角形锥螺纹的受力强度比较。
6)  tail-cone
尾锥
1.
Effects of tail-cone on geophone coupling system during seismic exploration;
地震勘探采集中尾锥因素对检波器耦合系统的影响
补充资料:笋锥螺
    (锥螺) 
    国内分布于浙江、福建、台湾、广东、海南岛;国外分布在日本、菲律宾。
    中型个体,壳高81毫米,壳宽18毫米。贝壳细长,呈尖锥状。螺层约29层。壳顶尖细,易破损。缝合线显明,在螺层间骤然收缩、使螺层呈串珠状。螺旋鄙每层表面具有5-6条明显的螺肋,在体螺层约为们条,肋间具有细肋纹。生长线显著,近边缘处常形成皱襞。贝壳表面淡紫色,或黄褐色。壳口近圆形,内面具有与表面相同的沟纹。厣角质,圆形。 
    生活于较深的泥沙质海底,20-40米深的海底数量相对较多。活动迟缓,多以细小生物为食。繁殖期集中在春、夏季节 
    肉供食用,贝壳可做装饰品或用于烧石灰,但产量不大。

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