reasonable cone designing
合理的锥体设计
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Based on the geometry and kinematics of cone bit, and designed in FORTRAN77. The software make some reasonable borrowings from AUTOCAD software so as to meet the needs of designing and drawing.
该套软件以牙轮钻头几何学、运动学为理论基础，合理利用AUTOCAD绘图软件包功能，按照牙轮钻头设计及制图要求，采用FORTRAN 77语言设计编制程序并制成成套软件。
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