查询词典 silica

It is a compoundofaluminum, silica, and fluorine.

它是铝、硅和氟的化合物。

Our company is mainly engaged in micro-silica powder (SIO2); fluorite sales volume favorably.

我公司主要从事微硅粉（SIO2）；萤石的销售，量大从优。

In this paper, the reflux of ethanol and the technique of separation with silica gel were used to extract and separate ursolic acid from Forsythia suspensa Thumb.

本文采用乙醇回流法与硅胶柱层析分离技术相结合的方法对连翘中熊果酸进行了研究，并对其最佳工艺参数进行了研讨。

The separation of fucoxanthin was carried out by the method of silica gel column chromatography.

利用紫外-可见光谱分析，进行了褐藻黄素的定性分析。

Its main features are: algae body as a single cell or even into a variety of groups; cell walls composed of silica and pectin, but also by the structure of the shell and the shell under the combined set of the Cheng, vertical section view was "soap-box"-shaped; in the upper and lower shell surface of the shell are patterns arranged in patterns on both sides of the main mode of symmetry and radial symmetry is divided into two categories, for the classification of the most important basis; be able to campaign Type in the shell has a shell side seam, can not be changed no shell seam types; pigment body sheet or ribbon, 1 or 2, or for multiple small discoid, yellow green or brown, containing chlorophyll a, c, also contains fucoxanthin and silicon A flavin and other photosynthetic pigments; storage material mainly for oil droplets; reproduction mainly for cell division and cell division in diatoms obvious features are: each cell division, resulting from two sub-cells,, only one and the mother cell and so big, the other one is smaller.

其主要特征是：藻体为单细胞或连成各式群体；细胞壁由硅质和果胶质组成，而且在结构上都是由上壳和下壳套合而成，纵断面观呈"肥皂盒"形；在上下壳的壳面上有花纹，花纹排列的方式主要分为两侧对称和辐射对称两大类，为分类上的最重要依据；能运动的种类在壳面都有壳缝，不能动的种类均无壳缝；色素体片状或带状，1个或2个，或为多个小盘状，黄绿色或黄褐色，含叶绿素a、c，还含有墨角藻黄素和硅甲黄素等光合色素；贮藏物质主要为油滴；繁殖方式主要为细胞分裂，硅藻的细胞分裂的明显特点是：每次细胞分裂所产生的2个子细胞中，仅有1个和母细胞等大，另1个则稍小。

Our company is the sale of micro-silica fume SiO2 content of about 83%.

我公司现出售的微硅粉SIO2含量在83%左右。

B the optimal amount of silica fume is often 8%~ 10%.

在最佳的数额硅粉往往是8％？

Hello, my name is Bill and I would like to know where Silica fume sits on the Triboelectric Series.

你好，我的名字叫比尔，我想知道硅粉在摩擦电序中的位置。

Silica fume concrete will be more extensively used in regulations of water resources and highway engineering in cold regions.

硅粉混凝土配合比优化的研究具有重要的学术意义、有着广泛的工程应用价值。

Comparative study of silica fume concrete long-term strength of the trend.

对比研究其硅灰混凝土中长期强度的发展趋势。

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％。