1) path difference
程差
2) interference path difference
干程程差
3) difference in elevation
高差;高程差
4) difference equation
差分方程
1.
Oscillation of second order neutral difference equation with continuous arguments;
具有连续变量的二阶中立型差分方程的振动性
2.
Existence of multiple positive solutions of a class of p-Laplacian difference equations;
一类p-Laplacian差分方程多个正解的存在性
3.
Global attractivity of difference equations with positive and negative items;
带有正负项的差分方程的全局吸引性
5) Lead error
导程误差
1.
Lead error would be occurred during process thread by NC lathe.
用数控车床加工精密螺纹时,在开始段和结束段会出现导程误差。
2.
This paper introduces a on line working status monitoring and assistant failure diagnose system of ball screw grinding machine using ball screw lead error data which be acquired just after the ball screw is grinded on the machine.
本文所研究的内容是汉江机床厂滚珠丝杠磨床改造项目的一部分，介绍了一种利用在线测量获得的滚珠丝杠导程误差对丝杠磨床进行在线工况监测和诊断的方法。
6) different frequency generation
差频过程
1.
The theoretical curves of tunable wavelengths of different frequency generation with phase -matching angle have been obtained by numerical simulation.
根据差频过程中参量光的三波耦合方程,对非线性晶体AgGaSe_2和AgGaS_2进行了差频光参量理论分析。
补充资料：高差
指测量中两点之间的高程差。从已知高程点对未知点进行水准测量或三角高程测量，即可求出两点之间的高差，再从两点间的高差，计算出未知点的高程。未知点比已知点高，其高差为正；反之，其高差为负。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条