“圆锥”造句

在冷凝器接近标准圆锥接头处打四个穴孔.
Make four indentations into the condenser near the standard cone joint.

上述装置也称为圆锥摆.
The present device is also called a conical pendulum.

设有一组平行线与圆锥曲线相交.
Consider a family of parallel lines that cut the conic.