沙漠地区旁折光对三角锁系的方位角条件及基线条件常数项的影响表现为系统性误差。

The influence of the side-refraction in desert regions on the absolute terms of the azimuth conditions and base-line conditions of triangulation chains is expressed as systematic errors.

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将非线性规划问题的单纯形加速法用于混合酸的线性滴定计算，同时优化酸浓度及有关条件常数，求出酸浓度的最优解。 讨论了影响单纯形法计算速度的因素。

The simplex optimization method about nonlinear programming problem has been used in the mixed acid linear titration and the effect of various factors on computative speed has been discussed.

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如果你在通常的环境下进行化学实验，那么这些条件是什么？什么保持常数？

What is it when you run a chemical reaction under ordinary circumstances, what's constant?

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What is it when you run a chemical reaction under ordinary circumstances, what's constant?

如果你在通常的环境下进行化学实验,那么这些条件是什么？什么保持常数？

麻省理工公开课 - 热力学与动力学课程节选

And the mathematics of that equation involved a double derivative in time of x 0 plus some constant times x equals zero with some constraints on it.

那个数学方程式,包括了x对时间的二阶导数,加上常数乘以x等于,还有一些限制条件。

麻省理工公开课 - 固态化学导论课程节选