“track gradient”的概念、定义、翻译、参考文献-科学参考

单词	track gradient
释义	track gradient Encyclopedia 工学铁路线形释 track gradient线路坡度铁路线路纵断面上一定水平距离的线段，起点或终点在该距离内上升或下降的高度与该线段水平距离之比。中国用千分率表示。通常线路纵断面由各种不同坡度的线段组成。又称坡率。
随便看	nonnegativity nonnegativity condition nonnegativity requirement non nesting matching non-nesting matching nonnesting matching non nesting partition non-nesting partition nonnesting partition non neutral plasma non-neutral plasma nonneutral plasma non-Newtonian behavior non-Newtonian flow non-Newtonian flows non Newtonian fluid non-Newtonian fluid non-Newtonian fluid mechanics non-Newtonian porous flow non Newtonian property of blood non-Newtonian property of blood non-Newtonian system non-nil-ideal non-noble metal catalyst non-Noetherian ring

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