和硫

Calculated results show that S〓, T〓, and T〓 electronic states are very close in energy for simple thiocarbonyl compounds such as CH〓CHS and 〓CS, and the excitation energies are relatively lower.

计算表明，对于简单的硫代羰基化合物CH〓CHS和〓CS，其S〓、T〓和T〓电子态的能量非常接近，并且激发能比较低，我们推测硫代羰基化合物的光化学反应很有可能是从能量较高的S〓态开始的。

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。

In comparison with F-A and F-B, low molecular weight fucoidan fractions had little lower proportions of sulfate, but similar proportions of uronic acid.

结果表明，大分子和低硫低分子量的组分对02·一、·OH和HOCI有很好的清除作用，而高硫低分子量的组分的活性非常低。

Firstly, based on the acidity balance equation in ecosystem, together with the steady state mass balance equations of sulphur and nitrogen, formulae for calculating critical loads of not only acidity and sulphur, but also acidifying nitrogen and nutrient nitrogen were educed.

基于原有的生态系统酸度平衡关系，并结合临界状态下硫和氮的稳态质量平衡，推导出计算酸度、硫、酸化氮和营养氮临界负荷的公式。

With 5-6 days and inoculum of 2%, the bioleaching efficiencies of Cu, Pb and Zn were 96.5%, 41.4% and 82.9%, respectively, which was similar to bioleaching with high strength inocula.

硫浓度越高，污泥样品pH值下降越快，3g/L、4g/L和5g/L的硫浓度下，Cu、Pb和Zn的沥滤效率相差不大。

The results showed that the sulfur recovery ratio declined along with the increase of NH3 content.NH3 in acid gas should be burnt up to decompose into N2 and H2O in the burner of acid gas,or it would form crystalline of ammonium salt to obstruct the following equipments,even make production shut down.

结果表明，随着酸性气中氨含量的增加，硫回收率下降；酸性气中的氨必须在制硫燃烧炉中完全燃烧分解为N2和H2O，否则会形成铵盐结晶而堵塞下游设备，严重时将导致停产；根据酸性气中氨含量的不同，可选择不烧氨和烧氨2种工艺流程。

The instrument can be used for the determination of total sulfur, total chrorine, trace water, bromine number and bromine index, mercaptan and hydrogen sulfide, chloride ion, salt content and chemical oxygen demand.

仪器可广泛用于各种样品中总硫、总氯、微量水分、溴价和溴指数、硫醇和硫化氢、氯离子和盐含量以及化学需氧量等的测定。

The results showed that except pods of main inflorescence, the other characters of the sterile and normal cytoplasms had not significant difference by t test. The correlation coefficients of length of main inflorescence, No. of first time branches and glucosinolates between sterile and normal cytoplasms was at 5 percent significant level, but correlation coefficients of the others was not significant. There were positive effects of male sterile cytoplasm on glucosinolates and weight of 1000 seeds, but different effects on the other characters when combinations were different.

结果表明：考察的12个主要性状中，除主序角果数不育胞质杂种F1和可育胞质杂种F1检验差异达5%显著水平外，其余11个性状2种胞质杂种F1上标 t检验差异不显著；主序有效长、第一次分枝数、硫苷等3个性状的可育胞质与不育胞质间线性相关关系显著，其余9个性状的线性相关关系不显著；NEA不育胞质对多数组合的硫苷和千粒重有优良相对效应，对其余性状的相对效应则组合不同正负效应不同。

We preliminarily describe the basic characteristics of the epithermal gold deposits in East China.

中国东部中生代浅成热液金矿可以划分为与花岗岩和与碱性岩有关的两种类型；也可以分为高硫型和低硫型两大类，而且以后一种为主。

E The fractal and spherical particles exist favorably in the coarse fraction, while in the fine mode (0μm) are floccules formed by flocking fine particles together, containing crustal elements and mainly being silicates and aluminosilicates. f The content of Al, Si, Fe in TSP samples is higher than in PM〓, indicating an enrichment of these elements in coarse mode. g Compared with non-dust particles, the dust particles are more homogeneous in terms of morphology, particle size and composition. h Particles with irregular shape and well-distributed size dominate in dust samples, containing crustal elements such as Mg, Al, Si, Ca, Fe et al.

细粒中除小圆球外，大多为细小颗粒聚结在一起的不规则块状颗粒，主要含地壳元素，可能是硅酸盐和铝硅酸盐。fMg、Al、Si、Fe在PM〓中的含量较相应的TSP中的低，可见这些元素主要存在于较粗颗粒中。g沙尘期气溶胶粒子的形貌较非沙尘期单一、均匀，非沙尘气溶胶粒子的形貌、组分较沙尘期复杂。h沙尘期样品中，粒径均匀、形状不规则的颗粒最多，这些颗粒主要含地壳元素Mg、Al、Si、Ca和Fe等，是典型的由源区传输过来的沙尘粒子，但其高硫含量表明在青岛特殊的地理环境下，在粒子表面发生了硫的均相和非均相反应。

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％。