extract yield造句

例句与造句

1. Methods : using orthogonal design method , to apply extract yield of rhizoma coptis and the extract amount of berberine hydrochloride as observing indexes , to measure the content of dl - tetrahydropalmatine with hplc
   方法：采用正交设计法，以槲皮素、原儿茶醛薄层斑点，延胡索乙素含量为指标，优选提取工艺。
2. It's difficult to find extract yield in a sentence. 用extract yield造句挺难的