... trial function ==> 试探函数 trial furnace ==> 试验炉 trial grade line ==> 试用坡度线 ...
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The result was confirmed by the trial of argon blowing through a hollow electrode in a 15-ton arc furnace.
这个实验结果也被钢厂15吨电炉中空电极吹氩的工业试验所证实。
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