Parsons recommended a method of automatic machine control that would guide a milling cutter to produce a "thru-axis curve" in order to generate smooth profiles on work pieces.
A beneficial reference is provided for deep independent development of automatic voice guide system with derived mathematic model.
所建立的数学模型对自动语音导航系统的自主性深层开发，提供了有益的参考。
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To solve the problem, we can use hypertext information navigation methods, including tour guide method, navigation chart method, search engine method, automatic hyperlink techniques, etc.