要进一步改善口感，看看它的“肚脐”：在有花的一端，茄子会有一个椭圆或圆形的小凹。
To further improve taste, check out its "belly button": At the blossom end, eggplants have either an oval or round dimple.
端部撕扯：由于不正确的设备节奏而导致的在大端面处形成的凹刻痕状滚子毛坯缺陷。
HEAD PULL : Green roller defect caused by improper machine timing; results in nick or indent of large end of radius.
并分析了缩径率、缩径凹模半锥角、摩擦系数、缩径管坯初始壁厚对管端翘曲和轴向伸长率的影响规律。
In addition, this paper presents how the diameter reducing rate, the die semicone angle, the friction coefficient and the original wall thickness influence the buckling and the axial elongation rate.
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