adj.化合价的
Progress in piancol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years. 论文综述了低价钛还原偶联醛酮合成片呐醇的进展,在超声辐射下进行了片呐醇的合成,全文共分为四章。
Progress in pinacol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years. 文章综述近几年来由低价钛还原偶联醛酮合成片呐醇的进展。
This paper is to make an analysis of Russian verbs from the perspective of valent capacity of verbs. 本文将借鉴配价语法中有关动词配价的理论，从动词配价能力的角度对俄语动词进行分析。
Lithium Lanopalmitate, one valent metallic soap, was synthesized by reaction of LiOH with Lanolin and then by remotion of lanolin alcohol. 羊毛酸锂是以羊毛脂为原料经皂化、抽提除去羊毛醇精制得到的一价金属皂。
This paper discusses several definitions on convex it y of functions and proves that under some conditions these definitions are equi valent. 讨论了几个关于函数凸性刻划的定义，证明了在一定条件下，上述定义的价性.
Equi valent effect is an ideal goal which is not easy to achieve,for it is affected by various linguistic and cultrral factors. 等效翻译受到来自两种语言和文化中很多因素的干扰，是不易达到的理想的翻译目标。
adj.流行的；普遍的
n.情人；情人节礼物；(姓氏)瓦伦丁
adj.矛盾的；摇摆不定的
adj.共有原子价的；共价的
