对圆锥面的加工，提出了一套简单易行的要领，并以三角函数，和表格举行论证，展现着实际操作时的应用大概性。
The processing of cone, and puts forward a set of simple method and trigonometric functions, and form, show the actual operation of possibilities.
对圆锥面的加工，提出了一套简单易行的要领，并以三角函数，和表格举行论证，展现着实际操作时的应用大概性。
The processing of cone, and puts forward a set of simple method and trigonometric functions, and form, show the actual operation of possibilities.
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