1881, from poly- + -valent, from Latin valentem, present participle of valere "be worth" (see valiant). Coined by German chemist Emil Erlenmeyer (1825-1909), who also designed the flask that bears his name.
双语例句
1. Major treatment methods for arsenic include sulfide precipitation, or complexation with polyvalent heavy metals.
砷的主要处理方法有硫化物沉淀法, 或与多价重金属络合.
来自辞典例句
2. The test proved that the polyvalent inactivity vaccine is safe and effective.
试验证明,该多价灭活疫苗安全性好,免疫效果确实.
来自互联网
3. Influenza may be prevented by active immunization with a polyvalent killed or subunit vaccine.
可以通过主动免疫接种多价灭活疫苗或亚单位疫苗预防流感.
来自互联网
4. It was theoretically predicted that polyvalent anions of C 36 CH 2 had high stability and aromaticity.
