水生成

A very strong acid, it forms ions of hydrogen or hydronium (H+ or H3O+), hydrogen sulfate (HSO4-), and sulfate (SO42-).

硫酸是一种强酸，能生成氢离子或水合氢离子(H3O+)、硫酸氢根离子(HSO-4)以及硫酸盐(SO2-4)。

Kinetics of methanol dehydration to dimethyl ether on modified kaolin catalyst was studied in an integral reactor under normal pressure. It is deduced that the surface reaction of methanol molecule adsorbed on the active site of catalyst with methanol molecule in gas phase is the rate determining step. The hyperbolic type kinetic equation r=ksbMpM2/(1+bMpM+bpE) is obtained according to the theory of langmuir even adsorption and using the R-E mechanism.

采用积分反应器，考察了常压下在改性高岭土催化剂上甲醇脱水生成二甲醚的反应动力学，根据Langmuir均匀吸附理论，采用R-E机理，推断吸附的甲醇分子与气相主体中的甲醇分子发生的表面反应为速率控制步骤，得到双曲线型动力学方程为： r= ksbMpM2 /(1+bMpM+bpE)（r为反应速率， ks为反应速率常数， bM为甲醇的吸附平衡常数， b为二甲醚和水的吸附平衡常数之和， pM、 pE分别为甲醇、二甲醚的分压）。

It is superior to chlorine by 2.6 times of available chlorine content and 2.5 times of oxidation capacity, and its disinfection effect is around 5 times over hypochlorous acid.

它的有效氯是氯的2.6倍，氧化能力约为氯的2.5倍，灭菌效果是次氯酸的5倍左右；特别是它与水中的有机物反应不生成三氯甲烷等三致物质，被确认是医疗卫生、食品加工、保鲜、饮水和工业循环水等方面消毒杀菌、除臭的理想药剂，是一种绿色消毒杀菌剂，被世界卫生组织列为A1级安全高效消毒剂。

In terms of the physiological characteristics of the zang organs, the physiological function of the spleen is to govern the transportation and transformation of the essence of water and grain to make qi and blood.

2.3 有些兼语式结构出现在主语中充当句子的一个成分，这种兼语式结构可以译成一个以具有动词意义的名词为中心词的短语。例如：(1)从五脏的生理特点来看，脾的生理特点是主运化水谷精微，生成气血。

In terms of the physiological characteristics of the zang organs,thephysiological function of the spleen is to govern the transportation andtransformation of the essence of water and grain to make qi and blood.

有些兼语式结构出现在主语中充当句子的一个成分，这种兼语式结构可以译成一个以具有动词意义的名词为中心词的短语夕(1)从五脏的生理特点来看，脾的生理特点是主运化水谷精微，生成气血。

The Diels-Alder cycloadditions of [60] fullerene for preparation of optical limitingmaterials are discussed in chapter 3 and 6. Soluble cycloaddition derivatives of 〓aresynthesized by the reaction of 〓 with indene,1,1'-biindene andcyclopentadiene derivatives.〓Particular, the Diels-Alder cycloaddition of 〓 with1,1'-biindene under controlled conditions affords the stable monoadduct 〓〓of novel structure, which was confirmed by HPLC, FTIR, FD-MS,〓NMR,〓 NMR, HMQC and HMBC spectra, Its two bridgehead cage carbons resonate at70.91ppm, The 〓 NMR spectra showed 38 lines consistent with the 〓 symmetryassociated with [6,6] addition. The 〓 shows similar optical limitingproperties to that of 〓 in toluene for 8ns laser at wave length 532nm. Moreover, thehigh solubility of this adduct in polar solvents such as THF, acetone enables itsincorporation into sol-gel glass matrix. The thin films prepared via the sol-gel methodshow improved OL behaviour compared to those of 〓. The langmuir-Blodgett filmformation and uv-visible absorption of 〓 are also investigated. LBmonolayer of this compound is prepared on the air-water interface at 〓 mol/l. In chapter 4, three water-soluble derivatives of [60] fullerene: fullerol(1), theaddition product (2)of fullerol (1)with polyvinylpyrrolidone and fumaric acidderivative of 〓(3) are synthesized and characterized.

通过Diels-Alder环加成反应，用茚〓和1，1'-联茚〓及取代茂合成了一系列可溶性的〓环加成衍生物，发现可控制反应条件，使1，1'-联茚与〓反应，并高产率地得到具有新颖结构的单加成物，用HPLC、FTIR、FD-MS 及〓、HMQC、HMBC等多种波谱技术对其结构进行表征，测得它的两个〓杂化的桥头碳的化学位移为〓ppm，证明生成的衍生物为6∶6闭式环加成，〓NMR谱中共给出38个信号，表明〓联茚衍生物分子具有〓对称性；在波长532nm，脉冲宽度8ns的激光下，〓联茚衍生物的甲苯溶液的光限幅性能与〓的甲苯溶液相近，由于〓联茚单加成衍生物熱稳定性好，在四氢呋喃，丙酮等极性溶剂中溶解性好，能分别均匀地掺入溶胶-凝胶中，已发现它的溶胶(so1)光限幅性能优于纯〓的光限幅性能；使用Langmuir-Blodgett技术将〓联茚衍生物在空气和水的界面进行了LB单层膜和多层膜实验以及UV-Vis吸收谱研究，通过等温压缩曲线测试，证明浓度为〓〓时，〓联茚衍生物能够形成单层膜。

This paper analyzes that the main reason of low injectivity of water injection wells is that the Sr 2+ in formation water reacts with the SO 4 2- in the Yellow River water to produce precipitate of BaSO 4 when the Yellow River water mixes with formation water.

该文分析了胜坨油田注水井吸水能力降低的主要原因是黄河水与地层污水混注时，地层水中的Sr2＋、Ba2＋与黄河水中的SO2－4反应生成BaSO4、SrSO4沉淀。

Through the analysis of experimental principle, method and instrument of the Jaeger we have studied the improvement of the Experiment device to measure the liquid surface tension coefficient, and designed the composite pistons.

为此，对Jaeger法测定液体表面张力系数的实验原理、方法及仪器进行了分析研究；同时，对实验装置进行了改进，设计了复合活塞加压装置，使其更容易控制气泡生成速度，实现了无水加压。

Generate at high temperature the typhoon of tall wet ocean environment is in mobile process, the oldest rate can be achieved horary the big wind energy of 300 kilometers reachs the quantity of heat of low latitude and lunt area in tall latitude, the hydro-thermal between facilitating north and south is exchanged, facilitating earth " the sea, air system " hot balance.

生成于高温高湿海洋环境的台风在移动过程中，最大速度可以达到每小时300公里的大风能把低纬度的热量和水汽带到中高纬度，促成南北之间的水热交换，促成地球"海—气系统"的热平衡。

According to the experiment results of degradation in field, degradation mechanism of the biodegradable mulch film can include four stages: the first, the material surface appeared deficiency while the surface area and interstice increased of material in the action of natural environment and microorganism; the second, along with the surface area and interstice of material increased and the gap strengthened, the chemical chain of the high polymer's principal chain broke as a result of the hydrolysis or the enzymatic effect in the action of hydration, causing the molecular weight and mechanics function descended; the third, the molecular of high polymer split the low polymer after its physical mechanical function descended, the material decomposed the fragments, the mass defect intensified; the fourth, the low polymer of fragments form in the natural environment, the microorganism, the biological enzyme became the smaller fragments, thus absorbed by the phagocytes, or further turn into CO2 and H2O due to hydrolysis.

根据田间降解试验结果推测，生物全降解地膜的降解机理可能包括四个阶段：第一，在自然环境、微生物作用下，材料表面出现缺陷，同时表面积增大、空隙增多；第二，随着材料表面积的增大、空隙的增多，吸水性增强，在自水合作用下，高聚物主链由于水解或酶解而使化学链断裂，导致分子量和力学性能下降；第三，在其物理机械性能下降后，高聚物分子链断裂为低聚物分子，材料裂解为碎片状，质量损失加剧；第四，碎片状低聚物在自然环境、微生物、生物酶作用下进一步水解变成尺寸更小的碎片，从而被吞噬细胞吸收，或进一步水解，生成CO2和H2O。

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％。