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- There were more carboxyl groups condensed guaiacyl units and guaiacyl primary alcohol in the waste ASP liquor than those in KP waste liquor. 与KP相比,ASP废液中木素含有较多的羧基、缩合型愈创木基结构以及愈创木酚型的伯醇醚.
- Many winemaking regions, especially old world regions like France, generally recommend to add the ML culture only after the primary alcohol fermentation has finished. 许多葡萄酒酿造地区,尤其是旧世界的地区,如法国、一般推荐加入后,才小学文化毫升酒精发酵完毕。
- Properties of SAE were compared with nonionic surfactants like primary alcohol ethoxylate(PAE),nonylphenol ethoxylate(NPE),and anionic surfactants like dodecyl benzene sulfonate(LAS)in the report. 文中还将SAE的性能与非离子表面活性剂伯醇乙氧基化物(PAE)、壬基酚乙氧基化物(NPE)及阴离子表面活性剂十二烷基苯磺酸盐(LAS)进行了比较。
- Reaction of lower primary alcohol and ethylene oxide was studied by zinc perchlorate as catalyst,and the products are narrow distributed. The suitable process conditions have been established. 以高氯酸锌为催化剂,环氧乙烷和低碳醇反应生成窄分子量分布的乙二醇单低碳醇醚,确定了适宜的工艺条件。
- The present paper describes a direct one-step synthesis of various benzimidazoles from primary alcohols and o-phenylenediamine with good yields using iodine as the catalyst. 在碘的氧化作用下,由伯醇和邻苯二胺一步合成了苯并咪唑及其衍生物。
- Grignard reagents react with ethylene oxide to yield primary alcohols containing two more carbon atoms than the alkyl halide from which the organometallic compound was prepared. 格氏试剂与乙撑氧发生反应,产生含有比配置有机金属化合物的烷基卤多两个碳原子的伯醇。
- Keywords butyric acid;dehydrogenation;primary alcohol; 丁酸;脱氢;伯醇;
- Zhen Chen , Kong-Shuang Zhao, Dielectric relaxation spectroscopy of macroporous IER beads suspensions dispersed in primary alcohols and water?ethanol mixtures, Colloids and Surfaces A , 2006 (in press, available online). 智霞,陈震,赵孔双,李国明,何广平,壳聚糖微球悬浊液的介电谱研究:弛豫机制的解释和内部信息的获得,化学学报,2006;64:709-715.
- Any of a class of highly reactive organic chemical compounds obtained by oxidation of primary alcohols, characterized by the common group CHO, and used in the manufacture of resins, dyes, and organic acids. 醛,乙醛由醇类有机物氧化还原而来的一类高活性有机化合物,其特征是都含有cho基团,用于制造合成树脂、染料和有机酸
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- an unsaturated primary alcohol present in wood spirit; use to make resins and plasticizers and pharmaceuticals. 木醇中一种主要的不饱和醇,用于制树脂、可塑剂和药品。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然,我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。
- He only accepted the primary education off and on in his childhood. 他小时候只断断续续地接受过初等教育。