查询词典 sulfur ether

"We were surprised in our finding," says research chemist and lead author Takayuki Tamura , because we thought that polyphenols or sulfur dioxide the unpleasant sensation.

&我们对该发现感到吃惊，&此项研究的主要发起人、化学家田村孝之说，因为我们原以为是多酚或二氧化硫产生了难闻的气味。

When the terminational sulfur atoms of the molecule sited on the top positions of the gold atoms, the current and conductance curves have small onset bias voltages.

分子末端硫原子处于金原子的顶位上时电流的开启电压很小，而处在金（111）面的空位上时约有1.0V左右电流禁区。

A similar reaction of the sulfur analog gave only the product of tetramethylene bridged bisdititanium halides.

在企图合成硫桥环戊二烯基化合物时，得到的却是四亚甲基桥联双环戊二烯基金属衍生物。

A method for producing fatty acid alkyl esters and/or glycerin comprising a step of bringing a fat or oil into contact with an alcohol in the presence of a catalyst, wherein the catalyst is at least one catalyst selected from the group consisting of the following to: a metal oxide having an ilmenite structure and/or a slyrankite structure; an oxide containing a metallic element belonging to the Group 12 and a metallic element belonging to the Group 4; a mixed oxide containing a metallic element belonging to the Group 12 and a tetravalent transition metallic element; a metal oxide containing zirconium and at least one metallic element selected from the group consisting of metallic elements belonging to the Groups 4, 5 and 8; and a metal oxide containing anatase type titanium oxide and/or rutile type titanium oxide, and the metal oxide containing a sulfur component of 700 ppm or less.

脂肪酸烷基酯和/或甘油的制造方法包括在催化剂的存在下使脂肪或油与醇接触的步骤，其中，所述催化剂是选自由下列～所组成的组中的至少一种催化剂：具有钛铁矿结构和/或斯里兰卡石结构的金属氧化物；含有属于第12族的金属元素和属于第4族的金属元素的氧化物；含有属于第12族的金属元素和四价过渡金属元素的混合氧化物；含有锆和选自由属于第4、5和8族的金属元素所组成的组中的至少一种金属元素的金属氧化物；和含有锐钛矿型氧化钛和/或金红石型氧化钛的金属氧化物，并且所述金属氧化物含有的硫成分为700ppm以下。

According to the calculated results, a new atomic charge distributions of 2,3-diphenyl-tetrazole-5-thione was proposed with the sulfur atom and tetrazole ring having negative charges and the two phenyl-rings havingpositive charges.

对合成的3种[1，3，4]-噻二唑-2-硫酮-3，5-二取代物，用元素分析、红外光谱和紫外光谱等方法进行了表征，同时得到了其中两种化合物的晶体结构。

The utilization of nitrogen and energy sources by Thiobacillus ferrooxidans was investigated,and the removal of sulfur from coal pyrite exposed to the air for different time was studied.

对不同氮源、能源的利用，研究了空气中氧化不同时间的煤系黄铁矿的脱硫情况。

A strain TFD-9 that was able to degrade sulfur in coal was isolated from soil in a coal mine and identified as Thiobacillus ferrooxidans.

从湖南某煤矿附近的土壤中，分离出能有效脱除燃煤中硫的菌株TFD-9，鉴定为氧化亚铁硫杆菌。

Since the element sulfur has lower electro-negativity than oxygen and the C=S double bond is easier to be polarized than C=O double bond, thiocarbonyl compounds and carbonyl compounds have different reaction properties, and their photochemical reaction mechanisms often possess dramatic difference.

但是，由于硫元素较低的电负性和C=S双键较高的可极化性，硫代羰基化合物和羰基化合物有着本质不同的反应特性，光化学反应机理常常存在着戏剧性的差别。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫磷与无水乙醇在NaOH存在下合成了二乙基硫代磷酰氯，然后再与对苯二胺反应合成了新型的含磷、氮、硫的膨胀型阻燃剂：1，4-二（O，O-二乙基硫代磷酰亚胺基）苯。

A salt of thiocyanic acid; formed when alkaline cyanides are fused with sulfur.

硫氰酸的一种盐，当碱性氰化物被硫磺溶解时形成。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。