和硫

1,1-bis-2-nitroethene was prepared by reacting nitromethane and carbon bisulfide.

摘 要：研究了以硝基甲烷和二硫化碳为原料，合成1，1-二甲硫基-2-硝基乙烯。

Jinding lead-zinc deposit, a famous super large ore deposit, has considerable reserve of lead, zinc, gypsum, celestite and pyrite.

云南金顶矿床是著名的超大型矿床，不仅有可观的铅锌储量，而且在矿区不到10km2的范围内还有大型的石膏矿和天青石矿，以及中型的硫铁矿。

There are also large scale gypsum and celestite deposit,middle scale sulfur iron ore within 10 km~2.,besides lead-zinc deposit.Some basic geological problems are still ambiguous,and ore deposit genesis are controversial.

除铅锌矿外，在矿区不到10km~2的范围内尚有大型石膏矿和天青石矿，以及中型硫铁矿等，成矿地质条件相当复杂。

The activity of superoxide dismutase, content of chlorophyllans element S in the leaves of Symplocos tetragona treated with 10 mmol/L NaHSO3, and pH buffering capacity in cell sap were determined in order to explore the resistance mechanism of S. tetragona to SO2 pollutant in this paper.

野外调查了棱角山矾抗SO2大气污染的生长状况，为探讨其抗性机理，进行了室内外加HSO3-处理试验，测定了SOD酶活性、叶绿素含量、硫含量和细胞液pH值及其缓冲能力。

The Product Is Suitable for separating the granularity is 0.3-0.02mm of the iron ore,limonite,chromites,trotline,zirconium,retiles,monazite,centimes,wolfram ore,Stan nary,tantalum minerals,niobium minerals and other non feerous metal,rare metal and non metal.

本设备适用于分选粒度0.3--0.02毫米细料的铁矿、钛铁矿、铬铁矿、硫铁矿、锆英石、金红石、独居石、磷乙矿、钨矿、锡矿、钽矿、铌矿以及具有比重差异的其他有色金属、稀有金属和非金属矿物体。

To probe into the role of GST in water stress,GST activities in the seedlings of common centipede grass treated by PEG6000 are investigated.

为探明谷胱甘肽转硫酶在水分胁迫中的作用，分别用聚乙二醇6000模拟干旱处理假俭草不同时间后，测定假俭草植株的质膜电解质渗透率，GST活性，H2O2和还原型谷胱甘肽含量。

The invention discloses an InP quantum point preparing method, comprising the steps of:(1) mixing InCl3 with trioctylphosphine oxide, and preserving heat at 90-110DEG C to prepare a solution whose In content is 0.1-0.3mol/L;(2) raising temperature to 130-180DEG C, and charging argon gas;(3) injecting PSi(CH333 into InCl3-TOPO compound in the molar ratio of 1 to 1-1 to 2;(4) when the solution color turns into transparent red or orange, raising temperature to 260-270DEG C and preserving heat;(5) lowering temperature to 90-110DEG C and injecting dodecyl amine, decyl amine or mercaptan;(6) dissolving reacting mixture in nonpolar solvent to form transparent colloidal solution, then adding in polar solution until the colloidal solution is muddy, and centrifugally separating and obtaining deposits and supernatant; and (7) centrifugally separating the supernatant, where the above steps (1)-(5) are performed.

本发明公开了一种InP量子点的制备方法，其步骤为：①将InCl 3 与三辛基氧膦混合，在90～110℃保温制得In含量为0.1～0.3mol/L的溶液；②升温到130～180℃，通入氩气；③将PSi(CH 3 3 3 注射入InCl 3 -TOPO复合物中，其摩尔比为1∶1～1∶2；④待溶液颜色变为透明的红色或橙红色，将升温260～270℃保温；⑤降温到90～110℃，注入十二胺、癸胺或硫醇；⑥将反应混合物溶于非极性溶剂，形成透明的胶体溶液，然后加入极性溶剂，直至胶体溶液出现混浊状，然后离心分离获得沉积物和上层清液；⑦取上层清液进行离心分离。上述步骤①～⑤在保护气氛下进行。

METHODS: Twenty-four male Sprague Dawley rats were averagely and randomly divide into group A, B and C, fed with normal diet, routine high-fat diet and routine high-fat diet plus sucrose, propylthiouracil, and sodium cholate, respectively.

24只♂SD大鼠随机平均分为正常组、常规组和改良组，分别喂普通基础饲料、常规用高脂饲料及常规高脂饲料+蔗糖+丙基硫氧嘧啶+胆酸钠。

The average composition for our sample is different in some ways from the CI chondrite meteorites: namely we found more zinc, gallium, and copper, and less sulfur.

我们样品的平均成分水平在某些方面与 CI 球粒陨石不同：即我们发现有较多的锌、镓和铜及较少的硫。

Produced by Hong Fanna, chromium anhydride, sulfuric acid anhydride, chrome green exported to the United States, Canada, Japan and Hong Kong and other countries and regions.

所产红矾钠、铬酸酐、硫酸酐、铬绿远销美国、加拿大、日本及香港等国家和地区。

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％。