酸的

Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acid and alkali UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acid and acetic acid), ammonia, amine and various alkali and salty solutions. Both materials cant resist the corrosion of strong oxidable acid.

在常温下，PVF2对卤素、卤代烃、强氧化剂、沸酸、碱等多种有机溶剂都有良好耐蚀性；UHMWPE对非氧化性酸(稀硫酸、硝酸及浓度较大的盐酸、磷酸、氢氟酸、甲酸、乙酸)、氨和胺及各种碱、盐溶液都有良好的耐蚀性，两种材料都不耐强氧化性酸的腐蚀。

Under normal temp., PVF2 has a fine corrosion resistance to many organic solvents like halogen, halogenated hydrocarbon, strong oxidant, boiling acidalkali; UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acidlarge concen-tration hydrochloric acid, phosphorus acid, hydrofluoric acid, formic acidacetic acid), ammonia, aminevarious alkalisalty solutions. Both materials can't resist the corrosion of strong oxidable acid.

在常温下，PVF2对卤素、卤代烃、强氧化剂、沸酸、碱等多种有机溶剂都有良好耐蚀性；UHMWPE对非氧化性酸(稀硫酸、硝酸及浓度较大的盐酸、磷酸、氢氟酸、甲酸、乙酸)、氨和胺及各种碱、盐溶液都有良好的耐蚀性，两种材料都不耐强氧化性酸的腐蚀。

Besides, the efficacious concentration of either morrhuic acid or sodium morrhuate was 0.1%, so they contained more docosahexaenoic acid and eicosapentaenoic acid and were ideal spermicides in vitro.

所以，含有较多廿二碳六稀酸、廿碳五烯酸的鱼肝油酸和它的钠称是较为理想的体外杀精子剂。

In order to check the corresponding compound at 31P NMR –45.4 ppm, stable pentacoordinate spirobicyclic 2-phenoxy-1,3-phenylene-dioxo-1,3,2-iminoacetoxyphosphoranes were synthesized through a new and efficient method whereby phosphorus pentachloride was displaced stepwise by catechol, N,O-bisamino acid and phenol, or catechol, phenol and N,O-bisamino acid, their 31P NMR chemical shifts are at about 31P NMR –45.0 ppm, the results showed that the compound 4 at 31P NMR –45.4 ppm was pentacoordinate phosphorane containing amino acid residue.

采用磷谱跟踪来研究上述成肽反应机理。例如在氮气保护下，0.1mmol O，O-亚苯基磷酰氯（1）和0.15mmol N，O-二苯丙氨酸（2）苯溶液加入0.6ml核磁管中，混合均匀，反应过程用磷谱检测。反应1分钟后，起始原料1(δp=19ppm)很快转变成N-磷酰苯丙氨酸的三甲基硅基酯（3）(δp=19.8ppm)，在8分钟内，3完全转变成苯丙氨酸磷烷4(δp =-45.4ppm)，同时出现环磷三酯（6）(δp=3.5ppm)。随着反应的进行，对应于化合物4的峰逐渐变小，而6逐渐变大。

The interaction ratio and constant were calculated by the voltammetric data.4. Studies on the interaction of phenosafranine, toluidine blue with hyaluronic acid.The interaction of PSF and TB with HA were studied by liner sweep voltammetry. The conditions for the interaction were optimized. The working curve for HA was established under the optimal conditions.

考察了有机染料酚藏花红、甲苯胺蓝与透明质酸的相互作用，优化了结合反应条件，在最佳实验条件下绘制了测定透明质酸的工作曲线并成功用于透明质酸模拟样品的测定，结果令人满意。

WO3, an interlayer compound prepared by J. W. Johnson (1981) using yellow tungstic oxide hydrate. Suspension of white powdery tungstic acid in anhydrous pyridine yields on standing for 2 wk whiteHW4O13.3H2O. IR and DTA studies revealed the connection between that pyridine polytungstate and white powdery tungstic acid (microcryst.), whose composition may thereby be assigned as H2W4O13.nH2O.

WO3。粉状白钨酸在无水吡啶中放置两周后可得到另一种化学式为(C5H5NH)HW4O13.3H2O的吡啶化合物，经IR和DTA研究可初步说明该化合物与粉状白钨酸之间的联系，并因此推测白钨酸的组成可能为H2W4O13.nH2O。

The determination and degradation of clopyralid in soil and oilseed were studied. The soil samples were macerated with aqueous sodium hydrogen. The slurry was tumbled and centrifuged.

本文采用反相高效液相色谱分析测定二氯吡啶酸在油菜田土壤中和植株上的残留动态及收获期土壤和油菜籽粒中二氯吡啶酸的残留量，并对二氯毗啶酸在土壤-水中的吸附解吸特性进行了研究。

Not decolorized by acid after staining, as bacteria that retain dye after an acid rinse.

耐酸的，抗酸的染色后不被酸褪色的，如细菌经用酸漂染后仍呈原色

The thesis investigated the analysis approach of citrulline and the producing process of citrulline by extract process and fermentation....

本文建立了瓜氨酸的分析方法，研究天然提取法及发酵法制备瓜氨酸的工艺，试图找到一条原料易得，成本低廉，生产方便，产品质量高的路线，为今后工业化生产瓜氨酸奠定基础。

Though arginine is required to make nitric oxide, and nitric oxide is required to dilate blood vessels and have an erection,"that doesn't mean eating something that is rich in citrulline will make enough arginine that it will lead to better penile erections," Goldstein says.

尽管生成一氧化氮需要精氨酸，而舒张血管跟勃起需要一氧化氮，Goldstein说：&那不意味着吃点富含瓜氨酸的东西就会产生总够的精氨酸，从而导致阴茎更好的勃起&。

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％。