“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	diffeomorphic mapping diffeomorphic orbit diffeomorphic space diffeomorphic structure diffeomorphism diffeotopic diffeotopic embedding diffeotopy difference difference algebra difference analog difference approximation difference base difference between injection and production pressures difference boundary-value problem difference bundle difference cochain difference cocycle difference coefficient difference cokernel difference correction difference-cover difference differential equation difference-differential equation difference distribution

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。