如果裂缝在断面上是垂直的，就形成环状岩墙，但是如果它们往内向侵入体的顶部倾斜，它们就称为锥形岩席（Cone Sheet）。这些岩墙一般经常是有联系的，出现于马尔岛、 斯凯岛、阿伦岛和北爱尔兰。
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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。
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