硫的

More sulphur is needed in tobacco than others, and S is important to the development, yeild and quality of tobacco.

烤烟是需硫较多的作物，硫素与烤烟生长发育、产量、品质密切相关。

It manufactures heterocyclic, such as pyrazine, thiazole, furan, pyridine and sulf-compounds with their ramifications; and pharmaceutical intermediates such as veratraldehyde, isovanillin, sufurol, diacetyl, acetoin, and 2, 5-dimethyl pyrazine.

食用产品有吡嗪、噻唑、呋喃、吡啶等杂环系列及含硫系列的合成香料化合物。医药中间体产品有：藜芦醛、异香兰素、硫噻唑、丁二酮、乙偶姻、2，5-二甲基吡嗪等。

Alite and C4A3S are the main minerals of Portland cement and Alite sulphoaluminate cement.

阿利特和无水硫铝酸钙矿物分别是硅酸盐水泥和硫铝酸盐水泥的主导矿物。

Alite and C4A3 are main minerals of Portland cement and Alite sulphoaluminate cement.

摘 要：阿利特和无水硫铝酸钙矿物分别是硅酸盐水泥和硫铝酸盐水泥的主导矿物。

Practice of opening experiment related to caffeine analysis with MEKC ;2. Amphiprotic chiral drug cetirinine was enantioseparationed by MEKC with two micellar and two chiral additives.

用毛细管胶束电动色谱电化学检测的方法对对氧磷、甲基对硫磷、乙基对硫磷、扑灭松等4种常见有机磷农药进行分离检测。

The study of the effect of DMSP (dimethylsulfoniopropionate, or dimethyl-beta-propiothetin, DMPT) in the production of acid rain and in the promotion of aquacultural animals nutrition is one of the focus fields in both environmental science and aquaculture.

一种二甲基硫化合物硫代甜菜碱成为环境科学和水产科学共同关注的热点之一。

Oxidative coupling ,and synergistic combination with ashless thiocarbamate,zinc thiocarbamate,sulfur and phosphorusfree molybdate,non-active organic borate and organic alkali metal salt.

文章介绍了几种提高胺类抗氧剂抗氧化能力行之有效的方法：氧化偶合以及与硫代氨基甲酸酯、硫代氨基甲酸锌、非活性钼酸酯、非活性硼酸酯和碱金属盐添加剂协同。

This paper mainly discussed the hydration mechanism of calcium barium sulphoaluminate mineral, belite cement and belite-calcium barium sulphoaluminate cement.

阐述硫铝酸钡钙矿物、贝利特水泥和贝利特－硫铝酸钡钙水泥的水化机制。

Two benzothiazole ester compounds containing boron with different alkyl chain, Di-n-hexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester (BNS-1) and Dicyclohexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester(BNS-2), were synthesized and their tribological performance as additives in rapeseed oilwas investigated using a four-ball testing machine.

合成了两种含不同烷基链的含硼苯并噻唑酯类化合物，即二正己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-1)和二环己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-2)。

By means of covalent coupling with the activation of 1-ethyl-3-(3-dimethyllaminopropyl) carbodiimide hydrochloride and N-hydroxysulfosuccinimide.

利用自组装技术将三巯基丙酸固定在金电极上，以1-乙基-3-（3-二甲氨基）碳二亚胺盐酸盐和N-羟基硫代琥珀亚胺作为活化剂，将甲基对硫磷抗体以共价键形式固定在三巯基丙酸自组装单分子膜修饰的金电极上，制备了一种免疫传感器。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。