First, you identify candidate services that are common to all members of the product line, using the method described in the analysis section for single systems.

首先，你要使用针对单一系统的分析部分中描述的方法，确定产品线的所有成员共有的候选服务。

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Single strand conformation polymorphism (SSCP) essay and sequence analysis of the PCR product were used to ascertain the gene mutation.

方法应用PCR及单链构象多态性(SSCP)分析技术结合基因序列测定方法确定突变类型。

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"If you do a forensic analysis we can then identify commonality of product which takes us back to single suppliers, single warehousemen, and those people who produce it, " he said.

BBC: New techniques help trace heroin