by contrast meter
通过对比计
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Finally it testified the parameter optimization's correctness, using the contrast experiment. Consequently the concentration measured by the dissolved oxygen meter was much more precise.
最后用对比实验证明参数优选的正确性，从而使溶解氧测定仪测出的浓度更加准确。
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