硫

It is shown in this paper that native ribonuclease and proinsulin can be nearly quantitatively formed catalyzed by PDI from a mixture of their S-sulfonated derivatives independent of the presence of each other.

我们研究了在体外PDI同时催化RNase和胰岛素原的S-磺酸型衍生物形成天然二硫键，结果表明，在合适的条件下，两者形成天然二硫键的产率互相不受影响，因此，我们推测PDI在生物体内可以同时催化多种蛋白质二硫键的形成。

A comparison has been made between the sensitometric results obtained from sulphur-sensitized cubic silver bromide emulsions which are latensified and hypersensitized with a gold thiocyanate solution, respectively, and those obtained from sulphur-plus-gold sensitized emulsions.

本文采用硫氰酸金溶液对硫敏化的立方体溴化银乳剂分别进行潜影加强和过敏化处理，并与硫加金敏化的乳剂进行感光性能的比较。

The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

The process improvement of flaky sodium hydrosulfide production;2. The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

Conceal disturbing elements like iron,copper,lead with hydrogen fluoride amine-EDTA,add the potassium iodide to separate iodine, and take starch as indicator,titrate with sodium hyposulfite.

试样以王水分解、泡塑富集分离金，硫脲解脱，以硝酸-硫酸破坏硫脲，用氟化氢胺-EDTA掩蔽铁、铜、铅等干扰元素，加碘化钾使之析出碘，以淀粉为指示剂，用硫代硫酸钠进行滴定。

Tung Yu-company specializing in the production of rubber / silicon add sulfur plastic machine, injection molding machine, conveyor belt machines add sulfur, renovation fetal add sulfur machine, solid tires, as well as all kinds of hydraulic machinery machinery.

东毓公司专业生产橡胶／硅胶加硫机、射出成型机、输送带加硫机、翻修胎加硫机、实心胎机械以及各式油压机械。

Drugs (methimazole, methylthiouracil, propylthiouracil and thiouracil); some sedatives (doxylamine succinate and phenobarbital); and some other drugs including the systemic antifungal antibiotic griseofulvin, the diuretic spironolactone, and the antibacterial sulfa drugs sulfamethazine and sulfamethoxazole.

抗甲状腺？药物（他巴唑，甲基硫氧嘧啶，丙基硫氧和硫氧嘧啶）；一些镇静剂（doxylamine琥珀和苯巴比妥），以及包括系统性真菌抗生素灰黄霉素，安体舒通的利尿一些其他药物，以及抗菌磺胺类药物和磺胺二甲嘧啶。

Based on the crystal structure of sulfonium salt and the reaction results, it was proposed that the β-hydroxy of the sulfonium salt play a key role in the highly stereoselective cyclopropantion reation.

根据硫盐晶体结构和硫盐在反应中所表现的性质，认为硫叶立德 b -位的羟基可能是反应取得高对映选择性的关键。

And then methanesufonic acid which is colorless and oderless is obtained by the hydrolysis of methane sulfonyl chloride at 70～90℃.

以硫、硫化钠、硫酸二甲酯为起始原料制备了二甲基二硫，然后用氯气氧化二甲基二硫得甲烷磺酰氯，经水解合成了甲烷磺酸，产品无色无味。

Zr-MMT carrier material impregnated by silver ion enhanced the adsorption content of sulfurate to 8. 26 mmol/g. The concentration of sulfur can be reduced below 30 ppm when the original gasoline has lower sulfur.

所制备负载活性金属银的吸附剂，其室温脱硫效果比Zr-MMT提高了一倍，容硫量达到8.26 mmol/，g，对低硫含量汽油，可将硫含量降低到30×10-4%以内。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐