查询词典 sulfur

The oxide s are sulfur di oxide and sulfur tri oxide , which when dissolved in water make sulfurous acid and sulfuric acid, respectively.

硫的氧化物有二氧化硫和三氧化硫，溶于水中时分别形成亚硫酸和硫酸。

Sulfite production process at present is already very mature but production costs remain high, the low rate of sulfur oxidation, dust removal effect of poor, low yield of sulfur dioxide, sulfurous acid in the solid suspended matter and other issues and more.

目前亚硫酸生产工艺已经非常成熟，但是仍然存在生产成本高，硫氧化率低，除尘效果差，二氧化硫收率低，亚硫酸中固体悬浮物多等问题。

Our company specializes in producing, refining sulfur powder, sulfur SC, phosphorus trichloride and other products.

本公司专业生产、精制硫磺粉，硫悬浮剂，三氯化磷等产品。

Under identical rate of flow , the identical temperature, with oxygen thickness increasing by, the speed the coal pyrolyzation sulfur is released is notable be accelerated; The sulfur ultimateness releases amounts increasing by.

在相同流量，相同温度下，随着氧气浓度的增加，煤热解硫释放速度显著加快；硫的最终释放量增加。

When additive sulfur is mixed with powdered catalyst, the surface integrity of diamond will be destroyed with different degree, especially (100) surface, the more additive sulfur is added, the more cavities appear on surface. The cavities almost show irregular and alveolate shape.

有添加剂硫参与合成时，两种粉末触媒合成的晶体表面的完整性具有不同程度的破坏，尤其是（100）晶面，随着添加剂硫含量的增加，晶体的表面出现孔洞缺陷，孔洞的形状多为不规则的&蜂窝状&。

The activated or leached process and their influence elements are studied by 1DREACT software package of coupled mass/heat transfer and chemical reaction dynamics of water-rock interaction, according to the geological and geochemical characters of fine disseminated gold deposits.(1) Water-rock reaction time is not the important influence element of activating gold;(2) At first, activating capability of hydrothermal solution increases with the increasing of total sulfur activity; after lga〓≥-4, the content of activated gold in solution is mainly related to original content of gold in wall rock, and does not visibly dependent on total sulfur activity.(3) It is a complicated nonlinear process of influence of activating gold capacity of hydrothermal solution with the change of temperature, in general, 220 ℃ is most favorable to gold activation.(4) The influence of oxygen fugacity on gold activation has a multiple functions coupling nonlinear effect, in general, Igfo〓=-41 is most favorable to gold activation.(5) Solubility of gold in fluid decreases with the increasing of velocity of flow, the product of velocity and aurous solubility reaches maximum when velocity is 0.2～0.5m〓m〓. yr〓, i. e. this scope of velocity is most favorable to gold activation.

利用1DREACT水-岩相互作用反应-输运耦合动力学软件包，根据微细浸染型金矿床地质地球化学特征，计算机模拟研究了金的活化、浸取过程及其影响因素，发现：(1)金活化过程中水-岩反应时间不是其主要制约因素；(2)热液对金的活化能力开始随总硫活度的增高而增高，当lg a〓≥-4后，热液中活化金的含量将主要与围岩中金的初始丰度有关，而对总硫活度无明显依赖关系；(3)温度对热液浸金能力的影响是一个复杂的非线性过程，总体而言，220℃最有利于金的活化；(4)氧逸度对金活化的影响呈现出一种多因素叠加的非线性效应，总体而言，lgfo〓＝-41最有利于金的活化与浸取；(5)流体中金的浓度随流体流速的加快而降低，流速与金浓度的乘积在流速为0.2～0.5m〓m〓。yr〓时达到极大，即0.2～0.5m〓m〓。yr〓的流速范围最有利于本类矿床的金的活化。

The sulfur compounds in VGO of SCO are mainly C3～7-dibenzothiophene,while those in FCC liquid products are short chain dibenzothiophene and a few alkylated benzothiophene and alkylated thiophene,and the percentages of these three sulfur compounds are 82.04%,13.42% and 0.56%,respectively,and they are difficult to be removed by hydrogenation.

结果表明，所含硫化物主要是C3~7-二苯并噻吩，而催化裂化反应后则以短侧链二苯并噻吩为主，还含少量烷基苯并噻吩和烷基噻吩，三者的质量分数分别为82.04%、13.42%和0.56%，均属于难以加氢脱除的含硫化合物。

In microwave condition Ce~(4+) may oxidize sulfur compound such as the benzothiophene mainly in diesel fuel into sulfonea for the first time. By choosing proper solvent DMF to extract sulfonea, thus in microwave condition sulfur content in diesel fuel is reduced from 554ppm to 96ppm, up to 82.7% desulfurization ratio.

3微波条件下首次使用Ce~(4+)来氧化柴油中的硫化物并把这类硫化物氧化成砜类化合物，再选用合适的溶剂DMF，把这些砜类化合物通过萃取的方法除去，微波条件下的氧化脱硫可以将柴油中的硫含量从554ppm降到96ppm，达到82.7％的脱硫率。

Sulfur bacteria Filamentous autotrophic chemosynthetic bacteria that derive energy by oxidizing sulfides to elemental sulfur and build up carbohydrates form carbon dioxide.

硫细菌：是通过将硫化物氧化为单体硫获得能量，可将二氧化碳固定为碳水化合物的丝状化能自养细菌。

The sulfides released by decay of organic matter are oxidized to sulfur by SULFUR BACTERIA of the genera Chromatium and Chlorobium, and further oxidized to sulfates by bacteria of the genus Thiobacillus.

有机体腐烂后硫化物从中释放出来，先被色素菌属 Chromatium 和 Chlorobium 属的硫细菌氧化成为硫单体，进而被硫杆菌属 Thiobacillus 属的细菌氧化成硫酸盐。

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