硫酸

The in vitro releasing property of the preparation was examined by the method of in vitro delivery. The in vivo releasing property of the preparation was evaluated by the shadowgraph technique of barium sulfate. Results The preparation method of the PYTCSD was obtained.

以苦参碱和氧化苦参碱体外释放度为指标，对制剂的包衣处方进行筛选；采用体外释放度测定法考察该制剂的体外释放性能；采用硫酸钡造影技术对该制剂在人体内的释放性能进行评价。

Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.

主要从事精细化工，贵金属化学试剂，硝酸银，氯金酸，氰化亚金钾，亚硫酸金盐，分子银浆，银粉，工业无水乙醇，化学试剂硫酸，盐酸，硝酸，无水乙醇，95%乙醇等电子和化学试剂产品研究与生产。

After preparing the base plan, place tracing paper or tissue paper over the original plan to sketch possible ideas and solutions to your landscape needs and problems.

在你准备好底层平面后，把描图纸或者硫酸纸放在原始平面上，然后可以描绘你的设计方案来解决在你的景观中的问题。

Sulphuric acid, a by-product of smelting, was in demand in China.

硫酸，副产品的冶炼，是中国的需求。

Methylmercury was extracted from the homogenized tissue with toluene in the presence of copper sulfate, sodium bromide and sulfuric acid

在存在硫酸铜、溴化钠和硫酸的情况下，用甲基从组织匀浆中萃取甲基汞。

Some factors, such as the reaction temperature, system pressure, solution acidity, sodium chlorate concentration and the quality ratio of hydrogen peroxide to sodium chlorate on reaction are studied.

研究了反应的温度、真空度、硫酸浓度、氯酸钠浓度、过氧化氢和氯酸钠摩尔比等反应条件对反应影响，得出了实验室制备二氧化氯的最佳反应条件。

The results were better than the one in which the sodium citrate was used as sole chelating agent.

在该双络合剂体系中，硫酸镍含量为1.15 g/L，是以柠檬酸钠为单一络合剂的两倍，而镀层中镍含量为4.59%，表明采用双络合体系具有明显的优点。

The elution results showed that there would be a definite effect after the fiber was treated by sodium cyanide after elution by sulphuric acid and ammonia, then with sodium nitrate.

铁的解吸探索实验发现，用第一步硫酸解吸回收氰化氢的氢氧化钠溶液处理第二步氨水解吸后的纤维，然后用硝酸钠解吸，有一定的效果。

Results The major occupational hazards in the expansion project were sulfuric acid, hydrochloric acid, ammonia, sodium hydroxide, cyanide, nickel and its compounds, formaldehyde, organic solvent and noise. Many protective measures would be carried out in this expansion projects.

结果该建设项目在生产过程中存在的主要职业病危害因素有硫酸、盐酸、氨、氢氧化钠、氰化物、镍及其化合物、甲醛、有机溶剂、噪声等，根据有关规定企业拟采取相应的措施。

The aluminum foils were galvanostatically etched in an aqueous solution of hydrochloric acid, sulfuric acid, sodium dichromate and hydrofluoric acid.

发现硫酸的添加主要是改善了溶液的钝化性能，铬酸酐的添加则不仅改善了溶液的钝化性能，而且减轻了阴极极化。

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％。