Try the technique before you buy with a DIY alternative. Roll a sheet of black card into a cone and place a strip of black or gaffer tape along the seam to hold it securely in place.
在买之前先自己DIY一个，把一张卡纸卷成圆锥型，用电工黑胶粘牢。
A cylinder connected to a cone is often met in sheet metal work.
园柱管与园锥相接合，在钣金工作中是经常遇到的。
In this paper, a cone - type curve flattening equation commonly used in engineering technology is presented for applications of sheet metal processing in mechanical manufacturing process.
本文给出了工程技术中常用的锥面上一类曲线的展平方程，供机械帚性工艺钣金加工应用。
Also, the characteristic parameters of conical liquid sheet with centrifugal nozzle, such as half-cone Angle and breakup length, were measured under different liquid pressures.
测得不同液压差下离心喷嘴锥形液膜的各项特性参数，如液膜半锥角、液膜破碎前长度等。
Also, the characteristic parameters of conical liquid sheet with centrifugal nozzle, such as half-cone Angle and breakup length, were measured under different liquid pressures.
测得不同液压差下离心喷嘴锥形液膜的各项特性参数，如液膜半锥角、液膜破碎前长度等。
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