But the improved standard can not solve all the problems about the fee of Supervision service. It's necessary to present systemic analysis and meticulous study of countermeasures.
然而取费标准的提高却不能一下子解决监理服务酬金不合理的所有问题，所以迫切需要对现状进行系统分析和对策进行细致的研究。
The sources of heavy metals pollution are complex, so it is necessary to study the reasons and countermeasures of over standard.
重金属污染来源很复杂，对中药产品中的重金属元素超标的原因及对策的研究势在必行。
The sources of heavy metals pollution are complex, so it is necessary to study the reasons and countermeasures of exceeded quota of it .
重金属污染来源复杂，对中药产品中的重金属元素超标的原因及对策的研究势在必行。
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