“spiral ramp development”的概念、定义、翻译、参考文献-科学参考

单词	spiral ramp development
释义	spiral ramp development Encyclopedia 工学公路运输开拓释 spiral ramp development螺旋式坑线开拓建立绕露天采场四周边帮以螺旋线方式改变运行方向的通道的公路运输开拓方式。
随便看	proportional numbers proportional odds model proportional odds regression model proportional part proportional plus integral plus derivative control proportional plus integral plus differential control proportional-plus-integral-plus-differential control proportional price rule proportional profile proportional region proportional regulator proportional regulatory systems proportional relation proportional relations among agriculture,light industry and heavy industry proportional relations among primary industry,secondary industry and tertiary industry proportional representation proportional sampling proportional selection proportional sequence proportional stratified sampling proportional subclass number proportional trapping proportional valve proportional variable proportion by addition

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