Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.Note the presence of megakaryocytes, erythroid islands, and granulocy...

Glycine and succinyl - CoA are precursors of 5 - aminolevulinic acid ( ALA ) biosynthesis.甘氨酸和琥珀酸是红假单胞菌生物转化合成5-氨基乙酰丙酸 ( ALA ) 的前体.Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or...

precursors的音标：precursors的英式发音音标为：[pri:'kɜ:səz]precursors的美式发音音标为：[pri'kɜsəz]...

n.先驱( precursor的名词复数 )，先行者，先兆，初期形式...