train maker

用法例句

A difference marker sequence CTTTTTTCTTTT was selected from C-strain and other strains of CSFV,and specific PCR primer pair and nested-PCR primer pair were designed at the basis of previously published sequences of CSFV.

　根据已发表的猪瘟病毒(CSFV)核苷酸序列,筛选出C-株与其他毒株的核苷酸序列差异标记CTTTTTTCTTTT,并设计包含此标记序列的CSFV特异性PCR引物对及nested-PCR引物对。

These structures are often joined by coordinate markers like "and" or "or".

其并列结构具有多项式、多层次以及主要用"及"、"若"作为并列标记等突出特点。