“芐叉”造句
2024年04月19日 09:59:25
聚乙烯醇 的耐輻解可通地
芐叉化和苯甲酰化提高.
Poly ( vinyl alcohol ) has been protected against radiation by benzalation and benzoylation.
聚乙烯醇的耐輻解可通過
芐叉化和苯甲?;岣?
Poly alcohol has been protected against radiation by benzalation and benzoylation.
比較研究了三種含
芐叉環(huán)戊酮基團(tuán)的新型香豆素類光敏染料.
Absorption spectra of three novel coumarin sensitizer incorporate benzylidene cyclopentanone moiety were studied.