基本解釋[機(jī)械工程]漸開線乾涉點(diǎn)詞組短語短語Involute e interference point 漸開線乾涉點(diǎn)involute interference point更多詞組專業(yè)釋義機(jī)械工程漸開線乾涉點(diǎn)