和硫

Orally exposed to endosulfan did not exhibit any estrogenic effect in mice and rats, such as increase uterine wet weight, promote uterine epithelial and stromal cell proliferation, induce vaginal cell cornification and uterine fluid imbibition.

本实验的结果显示，经口接触硫丹对大鼠和小鼠的子宫无增殖反应，也未使去势小鼠出现性周期和子宫吸液等雌激素样反应。

The color reaction of Zn(superscript 2+)-SCN(superscript -)-crystal violet in the presence of β-cyclodextrin and arabic gum has been studied and a new spectrophotometric method has been developed for the determination of zinc in water.

研究了在β-环糊精和阿拉伯树胶存在下，锌与硫氰酸盐和结晶紫的显色反应，建立了光度法测定水中微量锌的新方法。

In the titration experiment of NMR and IR spectroscopy, we can understand how sensors binding with metal ions: the two carbonyl group and crown ether group cooperated in binding with metal ions. Furthermore, by altering the "oxygen" atoms of crown ether to "sulfur", we can change the binding affinity to the soft metal: cupper. It shows 60-fold enhancement of fluorescence.

在化合物2中，我们引进了硫原子在冠状醚中，则应对电子密度较低之金属有较好的结合能力，实验结果显示了此分子对铜离子有相当好的选择性和结合能力，萤光增加可达60倍；同时由红外光吸收光谱和核磁共振光谱滴定实验可确知，香豆素衍生物上的两个羰基对金属离子的选择性及结合上扮演相当重要的角色。

The results showed that the decompound ratio of molybdenum disulfide and ratio of sulfur fixation could reach 99.5% and 92% respectively when the reactant ratio n(MnO_2)/n(MoS_2) was 3, reaction temperature was 450℃ and 550℃, reaction time was all 2h, and air flow was 15-20ml/min. The calcine were leached by sulfuric acid when the temperature was 30℃, and the leaching ratio of molybdenum and manganese could reach 99% and 92% respectively.

结果表明，将辉钼矿(MoS_2)和二氧化锰(MnO_2)按摩尔比1：3的比例混合均匀，在管式炉中依次在温度为450℃和550℃下分别焙烧2小时，鼓风量为15-20ml/min，此条件下MoS_2的分解率可达99.5%以上，固硫率可以达92%。

The "no-fly pollution, clean health", including the human body needs calcium, phosphorus, iron, carotene, ammonium acid, niacin, ascorbic acid and various vitamins, has a high nutritional value, which in the human body VB17 can degrade to form benzaldehyde, and then into a acid and ammonium hydride, can inhibit cancer cells die and break, with a clear role in anti-cancer Cancer

该产品"无蚊蝇污染，干净卫生"，含人体需要的钙、磷、铁、胡萝卜素、硫铵酸、尼克酸、抗坏血酸及多种维生素，有很高的营养价值，其中VB17在人体内可降解成苯甲醛，进而转化成铵得酸和氢化物，能抑制和休死癌细胞，有明显的防癌治癌作用

In order to testify our whether correction to Rossi's exchange term andthe potential of electron and nucleus is reasonable, we calculate 〓 moleculeelastic differential scattering cross section by electron impact on 100eV, ourresult is obviously better than Rossi's. Then we calculate elastic differentialscattering cross section at 150eV. In order to check the program thatcalculates molecule excitation cross section by electron impact, we calculatehydrogen excitation cross section from ground state to 〓 state at 20eVand 30eV, oxygen excitation cross section from ground state to 〓 state at15eV and 20eV. These calculations are in agreement with other theoreticresults, and experiment measure. Finally, we calculate sulfur moleculeexcitation〓 cross section by electron impact at5eV,7eV,9eV, 11eV, 13eV,15eV, and draw curve of excitation total crosssection corresponding to incident electron energy.

为了核对我们修改的计算激发态的程序是否正确，计算了电子与氢分子碰撞从基态激发到〓态入射能量分别为20eV和30eV时的微分截面以及电子与氧分子碰撞从基态激发到〓态入射能量分别为15eV和20eV时的微分截面，与别人的理论计算结果、实验的测量值基本一致，最后计算了电子与硫分子在5eV、7eV、9eV、11eV、13eV、15eV时的碰撞激发〓截面，作出了电子的入射能量与激发总截面的关系曲线，找出了总截面最大时对应的电子入射能量大约是11电子伏。

By applying density functional theory, the relationships between the electron structures and the complexation of the two types of bis-β-diketone ligands (dithiol-γ-linked or alkyl-γ-linked) were investigated, based on the polarized continuum model of the self-consistent reaction field. Using the model B3LYP/6-31G**, the geometries of the ligands were optimized and the electron structure changes calculated.

基于自洽反应场中的极化连续介质模型，采用密度泛函理论B3LYP/6-31G**计算了以二硫醚和芳环为桥基的两类双β-二酮配体的空间构型和电子结构，结合其配合物晶体结构数据，研究配体分子电子结构与配位性的关联性。

The inventive has excellent activity of diolefin hydrogenation and selectivity, sulfur resistance and arsenic resistence, extremely excellent pyrolysis gasoline selective hydrogenation performance, can meet the process requirements of pyrolysis gasoline selective hydrogenation.

本发明的催化剂具有优异的双烯加氢活性和选择性，以及抗硫和抗砷能力，具有十分优异的裂解汽油选择性加氢性能，能够适应裂解汽油选择性加氢的工艺要求。

Experiments carried on color negative film and color paper showed that these bi-equivalent couplers perform higher photographic activity and higher stability compared with conventional quadra-equivalent magenta couplers and are also different from DIR couplers.

文摘：本文叙述硫醚类二当量品红成色剂的合成和性能研究，经彩色胶卷和彩色相纸应用试验，与四当量成色剂比较，有着更高照相活性与稳定性，并说明了与DIR品成色剂的区别。

Disease characteristics. Homocystinuria caused by cystathionine β-synthase deficiency is characterized by developmental delay/mental retardation, ectopia lentis and/or severe myopia, skeletal abnormalities (excessive height and length of the limbs) and thromboembolism.

疾病特征：由胱硫醚β-合酶缺乏引起的高胱氨酸尿症的病征是发育迟缓／智力障碍、晶状体异位和／或严重的近视骨骼异常和血栓栓塞。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。