氢化

The studies on mixture fumigation of phosphine with carbon dioxide to control Sitophilus oryzae and Sitophilus zeamais were carried out at three different temperature 35℃、40℃and 45℃.

本实验在 35℃、 4 0℃和 4 5℃ 3个不同温度条件下用磷化氢和二氧化碳混合熏蒸防治玉米象和米象。

The micelle shape transformation of tert-octylpheny phenol polyethylene glycol ether (TX-100), sodium dodecyl benzene sulfonate and tetradecyl trimethyl ammonium bromide in heavy water solutions was studied by 1H nuclear magnetic resonance spectroscopy, including an NMR self-diffusion experiment. These experiments showed that the surfactants formed several shapes of micelles (spherical, ellipsoidal, and rodlike) at the respective concentrations which were far above their critical micelle concentration.

运用核磁共振一维氢谱和自扩散实验方法研究了聚乙烯乙二醇异辛酚醚(TX-100)、十二烷基苯磺酸钠和十四烷基三甲基溴化铵三种不同类型的表面活性剂在重水溶液中的胶束形状转变，发现它们在临界胶束浓度以上的各自相应浓度都有胶束形状的变化（由球状转变为椭球状或棒状）。

The results of thermodynamical calculation are basically concordance with the measured results.

计算结果与实测结果基本吻合，均表明砷化氢析出的标准平衡电势值正于-0.608V。

By TUNEL and ultrastructural observation,the results showed that cadmium toxication caused apoptosis in testes,and adding selenium may decrease the effect. 5.Cadmium can affect the activites of several enzymes in biomembrane, Such as SDH,ALP,Mg2+-ATPase,G-6-P,Ca2+-ATPase and lead to metabolical disorder in tissues.

通过酶组化检测，证明镉能影响公鸡睾丸组织中酶活性，即琥珀酸脱氢酶、碱性磷酸酶、Mg~(2+)激活的三磷酸腺苷酶Mg~(2+-ATPase、葡萄糖-6磷酸酶(G-6-Pase)、Ca~(2-)激活的三磷酸腺苷酶Ca~(2--ATPase活性下降，酸性磷酸酶活性升高，导致睾丸组织损伤。

Trehalase plays an important role in glycogen accumulation in the formarion of diapaused eggs. At the beginning of diapause, glycogen phosphorylase is the key enzyme to glycogen decomposition and the formation of sorbitol and glycerol, whereas at the stage of diapause termination, NAD-sorbitol dehydrogenase is the key enzyme to sorbitol decomposition and glycogen re-synthesis.

在滞育卵形成过程中，海藻糖酶对糖原的积累起着重要的作用；在滞育开始时，糖原的分解与山梨醇、甘油的形成，糖原磷酸化酶是关键酶；在滞育解除时，山梨醇的分解与糖原的再生成时山梨醇脱氢酶(NAD-sorbito1 dehydrogenase)是关键酶。

Pentanediol reacted with phosphorus tribromide to make it mono-bromination, under the catalytic action of PPTs it reacted with 2,3-dihydropyran to protect another hydroxy group, then to react with triphosphine, produced quarterphossal.

再以1，5-戊二醇为原料，三溴化磷使之单溴代，得到5-溴-1-戊醇，在对甲苯磺酸吡啶盐的催化下与2，3-二氢吡喃反应保护其另一端的羟基，与三苯基膦反应生成季磷盐。

In present paper the Surface electric properties of alumina trihydrate and its effect on adsorption properties of surfactants on ATH / Water interface were examined.

l前言氢氧化铝作为无机阻燃剂在塑料工业中已得到了广泛应用，其表面有机化改性是其应用中最引人注目的重要课题¨q'。

Poly silica hybrids were prepared through polymerization, condensation and sol gel processes of the mixture of methyl methacrylate, poly and a small amount of coupling agent methacryloxylpropyl trimethoxy siliane in tetrahydrofuran.

采用溶胶-凝胶技术，以硅酸钠为原料制备聚硅酸/四氢呋喃溶胶，再与甲基丙烯酸甲酯及少许偶联剂甲基丙烯酰氧丙基三甲氧基硅烷(MPTMS 混合，经聚合、缩合和溶胶-凝胶过程制备了有机/无机两相间有— C—Si—O—键的杂化材料——聚甲基丙烯酸甲酯/二氧化硅(PMMA/Si O2 )。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes was first investigated in room temperature ionic liquids.

反应温度为100～140 ℃，CO初始压力为2～6 MPa条件下，研究了室温离子液体与过渡金属三苯基膦配合物构成的催化反应体系中，叔丁醇与乙醇的氢酯基化反应。

Those undecomposed 2:14:1 phase could be the nucleation centre during DR process while the decomposed mixture formed c-axis texture of Nd_2_(14)B.

在脱氢再结合时，歧化产物以未分解的Nd_2_(14)B为形核中心，晶粒择优生长，生成各向异性永磁体。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。