过酸

Using tetrabutyl titanate and methyl methacrylateor 2-Hydroxyethylmethacrylate (HEMA as materials, methacryloxylpropyl trimethoxy siliane as coupling agent, HCl as catalyst, Poly-titania（PMMA－TiO2） nanocomposites and Poly-titania（PMMA－TiO2） nanocomposites were synthesized by sol-gel process.

以盐酸作为催化剂，将钛酸四丁酯水解制备二氧化钛（TiO2）溶胶；随后将所制备溶胶与甲基丙烯酸甲酯、硅烷偶联剂（γ－甲基丙烯酰氧丙基三甲氧基硅烷）相混合，以过氧化苯甲酰作为引发剂，经过聚合、缩合和溶胶-凝胶过程，制备了均匀透明的PMMA-TiO2纳米复合材料和PHEMA－TiO2纳米复合材料。

The oil yield was 28.35% under the optimal conditions. The characters of the oil were: refractive index 1.4681, acid value 9.65 mgKOH/g, iodine value 66.74 g/100 g, peroxide value 14.56 mmol/kg, unsaponifiable matters 1.93%, moisture and volatile matters 0.28%.

最佳条件下超临界CO2萃取的五叶瓜藤种子油的收率为28.35%；油的理化指标为：折光率1.4681、酸值 9.65 mg/g、碘值 66.74/100g、过氧化值14.56 mmol/kg、不皂化物1.93%、水分及挥发物0.28%。

Correlation analysis indicated that total chlorophyll contents in leaves of F. velutina and R. pseudoacacia Seedlings were negatively correlated with MDA content under both neutral salt stress and mixed salt stress. The total chlorophyll contents was positively correlated with Pro under neutral salt stress.However, the correlation was negative under mixed salt stress.

相关分析表明，两树种在中性盐和碱性盐胁迫下，总叶绿素含量与膜脂过氧化产物丙二醛含量呈负相关；中性盐胁迫下，刺槐和绒毛白蜡都与脯氨酸呈正相关，在碱性盐胁迫下则呈负相第3期武德等盐碱胁迫对刺槐和绒毛白蜡叶片叶绿素含量的影响

In a to second step, at room temperature or at a temperature of up to ~80 DEG C, color can be removed from the nitrile by stirring the acid-washed nitrile with 0.5-5 wt% of clay, charcoal, zeolitic type materials, mixtures thereof and the like.

在第二步中，在室温下或在高达～80℃的温度下，可以采用0.5-5wt％的粘土、活性炭、沸石类材料、其混合物等搅拌酸洗过的腈而从腈中脱除颜色。

The synthesized material is then ball grinded, dried, screened, and loaded into die. The pressure is 50-120MPa, it is isostatic pressing, the pressure is 120-300MPa;it is adglutinated in 1400-1650DEG C, the warming-up rate is 2-10DEG C/ minute, heat preserved for 2-50 hours, then cooled to room temperature, the doping zirconic acid lanthanum material is produced.

合成料再经球磨、烘干、过筛造粒，装入模具干压成型，压力为50～120MPa，再进行等静压，压力为120～300MPa；在1400～1650℃在空气气氛中烧结，升温速率2～10℃/分钟，保温2～50小时，然后自然冷却至室温，制得掺杂锆酸镧材料。

Result: Ginsenoside Rg2 could improve the abnormal electrocardiogram,reduce the arca of myocardial ischemia and improve the abnormal zymologic value of myocardial.

结果 ：人参皂苷Rg2 能明显抑制心电图S T段J点偏移，减小心肌坏死面积，降低肌酸激酶、过氧化脂质含量，升高超氧化物歧化酶。

PANSA nanoparticles were synthesized by oxidative copolymerization of aniline and 2-methoxyaniline-5-sulfonic acid in 1.0 mol/L HCl aqueous solution with ammonium peroxydisulfate as oxid...

PANSA纳米颗粒通过化学氧化聚合法，在无乳化剂或稳定剂存在下，以过硫酸铵为氧化剂，在1.0m ol/L盐酸水溶液中由苯胺与2-甲氧基苯胺-5-磺酸合成得到。

The heat had caused the milk to go sour.

温度过高使牛奶变酸了。

Acid rain has a pH of 2or less and is responsible for acidifying streams and lakes and ,thus,not only killing fish but leaving the waterway too acidic to be reinhabited.

2酸雨的pH值为2甚至更小，它能使河流湖泊酸化，因此不但会导致鱼类死亡，还会令水流经之处的土壤酸性过强而无法生长植被。

That is to say, less and less of the sea will remain hospitable for calcifying organisms.

在早年的研究中，许多科学家判断，海洋酸化问题不大，因为至少对方解石而言，表层水仍然保持过饱和，而方解石是最坚硬的一种碳酸钙。1990年代，迈阿密大学的海洋生物学家兰敦进行了一项精妙的实验，来验证科学家的猜测。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！