The general method of calculation of E. M. sounding is that of numerical integral. But because of using summation instead of integral, it makes the calculation too slow and precision too low.
频率测深一维问题正演常用的计算方法是数值积分方法，但是这种方法由于利用求和代替积分使得计算速度很慢，精度也较低。
The paper mainly adopt the method of hertz simulation, and m ak e the test about wheel and rail wear on JD-1 simulative test machine.
通过采用赫兹试验模拟的方法，在JD - 1轮轨模拟试验机上进行了车轮轮对与钢轨磨损的试验研究。
At present, the vulcanization promoter m production method mainly USES the aniline process (i. e, high-pressured law).
目前，橡胶硫化促进剂m的生产方法主要采用苯胺法(即高压法)。
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