硅酸的

The experimental results showed that in the acid condition the polymerization rate decreased in acetic acid media, and the contents of species Sia and Sib were increased.

实验表明：在酸性氛围下，当有乙酸化合物存在时，聚硅酸溶液中的硅酸组分与钼酸反应的速率总是要比不含乙酸时的大得多；溶液中存在的Sia和Sib形态均表现出不同程度的增加。

It is proposed that the sturdiness of silicic acid congealed gel is a key factor to make the reaction of producing"Lead Trees" successful.

文摘：提出了生成"铅树"反应成功的关键是硅酸凝胶的坚固性，找到了较好的硅酸凝胶的制备条件，使该氧化还原平衡移动的反应成功率提高了90％以上。

But in the area where the researchers were working natural blooms had already depleted much of the silicic acid, which the diatoms use for shellmaking.

但是，在研究者工作的自然增长的地方已经耗尽了所有的硅酸，而硅酸是硅藻制造壳的主要物质。

The experiment results indicate that the best preparation condition is the sodium silicate concentration of 0.97 mol/L, the molar ratio of Al/Fe of 2:1~4:1, and the molar ratio of SiO2/ of 2:(2+1) at 30~40℃ for 20~30 min with activation pH of 5.0~6.0. At pH of 6~11, polysilicate aluminum ferrite chloride has the best flocculation performance.

研究结果表明：当硅酸钠浓度为0.97mol/L，Si/为2：(2+1)、Al/Fe为2：1~4：1时，熟化温度30~40℃、pH为5~6、熟化时间20~30min的条件下，制备的聚硅酸氯化铝铁对于pH为6~11的生活污水的混凝处理效果最佳。

In order to match the requirements of water treatment engineering, considerable attention was paid to develop composite inorganic polymer flocculants during recent years, which are represented by polyaluminum silicate chloride, polysilicate ferrite and polysilicate ferric aluminum.

受水处理工程需要的牵引，以聚硅氯化铝、聚硅酸铁及聚硅酸铁铝为代表的三大类新型复合无机高分子絮凝剂的开发研制及应用研究近年来受到格外的关注，取得了不少新成果。

A new polysilicate ferric aluminum was prepared by using water glass,ferric sulfate and aluminum sulfate as raw materials.The conditions of preparing PSFA were optimized: the polymerization degree of silicic acid is 0.5; the molar ratio of Fe3+ and Al3+ to SiO2 is 1: 1; the molar ratio of Fe3+ to Al3+ is 1: 1;and the degree of hydrolysis is 0.5;while the influence of the aging time on the coagulation property of PSFA is not obvious.

用水玻璃、硫酸铁和硫酸铝制取聚硅酸铁铝混凝剂，确定了制备PSFA混凝剂的优化条件：硅酸聚合度η为0.5，Fe3+及Al3+与SiO2的摩尔比为1： 1， Fe3+与Al3+的摩尔比为1： 1，水解度B*为0.5，而熟化时间对PSFA混凝剂的混凝性能影响不明显。

The effect ofmagnesium trisilicate on absorbing tetracycline and its effect in the presence of somesurfactants and citric acid in vivo have also been studied by usng the data ofurinary excretion.

实验结果表明：三硅酸镁的吸附能力随介质 pH 的高低而增减。月桂醇硫酸钠和枸橼酸在体外对三硅酸镁有明显的解吸作用，而 Brij-35的解吸作用不明显。

Cultivated at the early stage of the Neolithic Age,the morphological characters of plant opals of rice detected from the potsherds from the 3rd and 4th cultural layers of Hemudu and Luojiajiao site s,were analysed and compared.

对长江下游迄今为止发现的最古老的新石器时代遗址———河姆渡遗址、罗家角遗址进行了植物硅酸体分析，结果在两遗址出土的陶器碎片中发现了起源于水稻叶片运动细胞硅酸体。

Under the experimental conditions, alum, alum/sodium silicate, sodium silicate/hydrochloric acid, zinc chloride, and sodium silicate/zinc chloride are effective to inhibit the dissolution of precipitated calcium carbonate in distilled water with pH value 5.85, and the pH values of the suspensions decrease.

硫酸铝、氯化锌、硅酸钠/稀盐酸可对PCC在pH值为5.95的醋酸/醋酸钠缓冲溶液中的溶解性产生较弱的抑制作用，硅酸钠/氯化锌的溶解抑制作用相对较为显著，滤液钙离子浓度可降低30％左右。

Theresult showed that the stability and accuracy of α-Si-Mo heterophony acid absorption photometry methodwere improved higher than that of β-Si-Mo heterophony acid method can be used for daily rapid analysisof high content of silicon in the ceramic chalk.

硅的测定方法很多，对于高硅(Si≥0.4%)样品的测定，一般采用重量法[1]或氟硅酸钾容量法，由于二者都需要把分解好的样品形成正硅酸沉淀进行过滤，然后分别进行测定。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。