英语翻译Transfection efficiency was determined by immunocytochemistry,counting the cells expressing EYFP and pendrin or its mutant in respect to the cells expressing only EYFP.这句话中in respect to应该怎么翻译

问题描述:

英语翻译
Transfection efficiency was determined by immunocytochemistry,counting the cells expressing EYFP and pendrin or its mutant in respect to the cells expressing only EYFP.
这句话中in respect to应该怎么翻译