查询词典 silica

Patterns in Nature: Microscopic Earth 1 The silica shell of diatoms often gives them an opalescent sheen.

硅藻属的硅石外壳通常给它们一种乳白色的光辉。

Researchers have found that these bright layered deposits contain opaline silica and iron sulfates.

研究人员发现，这些明亮的层状矿床含有乳白色硅和铁硫酸盐。

" The opaline silica deposits would be good places to explore to assess the potential for habitability on Mars , especially in these younger terrains ."

"重要的是，液态水在火星上存在的时间越长，火星可能适合生命存在的时间也就越长，"米利肯说，"若要评估火星上潜在的可居住性，这些蛋白石硅酸盐沉积层，特别是较为年轻岩体中的沉积层，将会是理想的研究地点。"

A siliceous rock of chalcedonic or opaline silica occurring in limestone .

这是在风化的灰岩露头上用较小的AB距(40m)记录的。

"What's important is that the longer liquid water existed on Mars, the longer the window during which Mars may have supported life," Milliken said. The opaline silica deposits would be good places to explore to assess the potential for habitability on Mars, especially in these younger terrains.

" "重要的是，液态水在火星上存在的时间越长，火星可能适合生命存在的时间也就越长，"米利肯说，"若要评估火星上潜在的可居住性，这些蛋白石硅酸盐沉积层，特别是较为年轻岩体中的沉积层，将会是理想的研究地点。

"This is an exciting discovery because it extends the time range for liquid water on Mars, and the places where it might have supported life," said CRISM principal investigator Scott Murchie of the Johns Hopkins Applied Physics Laboratory in Laurel, Md. The identification of opaline silica tells us that water may have existed as recently as 2 billion years ago.

" "这是个令人兴奋的发现，因为该发现延长了水在火星上的存在时间，也扩大了可能支持生命存在的范围，"专用小型侦察影像频谱仪的主要研究人员、马里兰州劳瑞尔市约翰霍普金斯应用物理实验室的斯科特·默基说，"蛋白石硅酸盐的发现使我们可以断定：仅仅20亿年前，火星上仍有水存在。

An Fab' fragment of IgG is oriented on gold and silica surface inorder to reduce the nonspecific absorption, decrease space position resistance andimprove the orientation and activity of IgG on sensitive films.

抗体Fab'片段在基片上的自组装有效地减低了待测液中非特异性吸附，降低空间位阻，提高敏感膜的抗原结合能力。

What is perhaps more important, since the information above is obtained synchronously, the proposed methodology could provide information about the type of adsorption (chemical or physical adsorption), the change of chemical state of aniline in the system during the adsorption process, whether the chemical adsorption and physical adsorption took place simultaneously, the rate of the chemical and physical adsorption, and so on.2 We have studied the uptake of orthoxylene / isoamyl alcohol on silica gel as an example to demonstrate a novel methodology for studying multicomponent gas adsorption on solid adsorbent.

更为重要的是该吸附床为微分吸附床，所得这些信息又是同步的，这就能更全面深入地了解该吸附过程。该研究还表明：该法发挥了近红外光谱的几乎所有优点，提供的信息直观，无需复杂的数学处理和传质理论假设就能建立可信的传质模型以供工程设计和操作之用。

After discussing the principle, method and advantages of RPM, we adopt StereoLithography Apparatus technique and be drived by the model of CAD of the product directly, through the laser machine focalize photosensitive resin under the calculator control, making its surface solidified layer by layer and folded to make into the entity prototype of the headlight, then making use of the technique of overcasting the mold with silica gel to produce injection mold.

在论述了RPM技术的原理方法及优点后，采用光固化成型技术，直接由产品的CAD模型驱动，通过激光器在计算机控制下聚焦到光敏树脂上，使其表面层层固化并叠加制成了车灯的实体原型，之后运用硅橡胶复模技术制成了注射模具。

In order to probe into the mechanism of VO2/silica gel catalytic ozonization degrading sulfosalicylic acid, different technological parameters were investigated and changes of catalyst active components were analyzed.

通过对不同工艺参数的考察及催化剂活性组分变化的分析，探讨了VO2／硅胶催化臭氧化降解磺基水杨酸的机理。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。