查询词典 silica

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。

Researchers plan to use Spirit's thermal emission spectrometer and panoramic camera to check for more silica-rich outcrops on the route to Von Braun and Goddard.

研究者正计划使用火星车上携带的热辐射分光计和全景相机沿前往"冯·布劳恩"和"戈达德"的途中寻找更多的富硅岩石出露。

We were focusing on the growth momentum, growth environment and physical meaning of silica in Parabola and linear model.

着重分析了线性抛物线模型中氧化硅的生长速率、生长环境、物理意义等。

According to testing results, the stress-strain curve of the cemented soil stabilized the nanometer silica fume is fitted using a quadratic parabolic curve and expression equation for upward sector of the stress-strain curve is given.

根据试验结果，分析了纳米硅粉水泥土的变形特性，并对其应力应变曲线进行了二次抛物线拟合分析，推导了曲线上升段的表达式。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。