pcr food testing造句

例句与造句

1. "' PCR food testing "'is the engagement of Polymerase Chain Reaction ( PCR ) technologies for the testing of food for the presence or absence of human pathogens, such as E . coli, Salmonella, Listeria, etc.
2. It's difficult to find pcr food testing in a sentence. 用pcr food testing造句挺难的