该类化合物中每种化合物的实测浓度与其各自限值的比值之和不得超过1的翻译：The compounds in the measured concentration of each compound and the sum of the ratios of the respective limit values shall not exceed 1 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

These compounds in the measured concentration of each compound the ratio of their respective limits, and shall not exceed 1

The compounds in the measured concentration of each compound and the sum of the ratios of the respective limit values shall not exceed 1

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The compounds in the actual test each compound concentrations and their respective threshold value of the ratio and may not exceed 1

The compounds in the measured concentration of each compound and the sum of the ratios of the respective limit values shall not exceed 1