二氧化硅

The heat ageing interaction of silicone rubber with three of fumed silica having different surface property was studied.

本文研究了三种表面性质不同的二氧化硅填料与二甲基硅橡胶在热老化时的作用。

The plurality of nanoparticles includes glass, silica, pumices, metal compounds adapted to react with chloride in the coolant, and/or mixtures thereof.

所述很多纳米颗粒包括玻璃、二氧化硅、浮石、适于与冷却剂中的氯化物反应的金属化合物和/或它们的混合物。

The data were used to calculate the activities of titanium and silicon oxides in the molten slags.

实验中测定了不同H〓O/H〓比值、1550℃下CaO-SiO〓-Al〓O〓-MgO熔渣中的二氧化硅活度及其系数，结果高于其他工作。

Silicon in fuel oil reacts with aminosulfonic acid and form a violet component in the medium of tartaric acid and sulfuric acid. The component exhibits maximum absorption at 815nm. Beer's law is obeyed in the range of 0~250μg for silicon dioxide and linear correlation is better.

考察了测定条件：在酒石酸及硫酸介质中，最大波长位于815nm，二氧化硅浓度在0~250μg范围内符合比尔定律，线性关系较好。

The reflective coating was prepared with glass bubbles and Al 〓 coated glass bubbles used as pigments. The naked glass bubble went together during the coating drying because its'low density. When the Al 〓 coated glass bubbles used as pigments, the bubbles can be dispersed very well in the dry coating.

空心玻璃微球和氢氧化铝涂层玻璃微球作为填料时，涂料在400nm-2500nm范围内都具有较大反射率；纳米二氧化钛作填料时，在可见光区域具有较大反射，红外区域反射率较小；以纳米二氧化硅作为填料的涂料在整个紫外-可见-近红外区域反射率都很低。

This Coarse-Grained Sedimentary Rock Is Formed By The Consolidation And Aggregation Of Sand And Held Together By A Natural Cement, Such As Silica.

这粗粒沉积岩形成，巩固和聚集沙子一起举行的一个自然的水泥，如二氧化硅。

Any of various polymers having the elastic properties of natural rubber.

基性的基性的，含有比较少量的二氧化硅的作为火成岩的

Hill of the 2 oxide silicon components of the Airframe, Engine damage, pilot sight, it is very dangerous, affected European countries have been forced to take the "9. 11 "incident has been the largest grounded.

火山灰里的二氧化硅等成分会对飞机机体、发动机造成损害，影响飞行员视线，非常危险，受影响的欧洲各国因此被迫采取了&9.11&事件以来最大规模的停飞措施。

Then they placed an extremely thin layer of silicon dioxide — about two billionths of a meter thick — onto the silicon between the gold contacts.

这样，磷原子核的自旋可以在二氧化硅的表面被检测到。

Nanocrystalline silion have many difference from bulk silicon, such as structure, the capability of optics and photoelectricity. It shows high potential on light-emitting devices, photodetector, optoelectronic devices and sensor. Si-rich silica was deposited by RF magnetron sputtering and the film dopped with aluminium is deposited too.

本文采用射频磁控溅射方法制备富硅二氧化硅薄膜，并在此基础上掺入单质铝，经高温退火，自组装生长纳米硅颗粒，并对薄膜进行了拉曼散射、X射线衍射、扫描电镜、傅立叶红外吸收光谱和光电子能谱的测定，对吸收光谱也进行分析。

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％。