The preservative conditions and term of validity of the standard sample are fixed on the basis of relevant experiments.
另外，通过对酸解烃标准样品的保存试验研究，确定了该样品的包装和有效期。
The preservative conditions and term of validity of the standard sample are fixed on the basis of relevant experiments.
另外，通过对酸解烃标准样品的保存试验研究，确定了该样品的包装和有效期。
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