查询词典 silica

We controlled the composition of reactants and reaction time to study their relations and their effects on optical characteristics, morphology and physical property of the formed coatings. The particle size of silica and modified silica were measured by TEM and light scattering. The surface morphologies of the films were observed by FESEM, SEM, and α-step. FTIR and EDAX were employed to investigate the chemical bondings in the coatings.

实验中调整反应组成物(TEOS、HCl、DPHA、MSMA)和反应条件彼此间的反应关系作分析，探讨反应物添加量对混成材料的光学、形态学、物性之影响，利用粒径分析仪，TEM观察粒径大小及分布、利用FESEM，SEM，α-step观察表面形态学，，而其化学分析部份，利用FTIR，EDAX检测其化学结构及元素分析。

The durability test increases concrete of resistance value the nano-silica powder to be possible to promote 30% to 42%, the coefficient of penetration then mostly is lower than 100 coulombs, demonstrated nano-silica powder can effectively promote the concrete durability.

由耐久性试验显示，奈米矽粉高性能混凝土之电阻值约提升30%至42%，渗透系数则低於100库仑，即添加奈米矽粉能有效提升高性能混凝土之耐久性。

Company specializing in the production of various types of desiccants: silica gel desiccant such as, clay Desiccant, activated carbon deodorant, desiccant molecular sieves, natural desiccant, mineral desiccant, color blue bead silica gel desiccant, medicinal desiccant, food with desiccant, container desiccant, desiccant Antirust mold, mildew-chip, rust-proof paper, anti-rust fluid, mold fluid, etc..

公司专业生产各类干燥剂：如硅胶干燥剂，粘土干燥剂，活性炭除臭剂，分子筛干燥剂，天然干燥剂，矿物干燥剂，变色蓝珠硅胶干燥剂，药用干燥剂，食品用干燥剂，集装箱干燥剂，防霉防锈干燥剂，防霉片，防锈纸，防锈液，防霉液等。

Besides, the time-resolved shadowgraphs of the phenomena inside the silica glass are also recorded, and the evolution process of two stress waves inside the silica glass is observed in the shadowgraphs, which are believed to be related to two material ejections outside the target.

此外，对石英玻璃内部的现象进行了时间分辨阴影图记录，从阴影图中观察到了石英玻璃内部的两个应力波的演化过程。我们认为这两个应力波与目标靶外部的两次物质喷射相关。

Ground fly ash and silica fume which have great positive influence on GRC's long-term durability are important factors to improve the flexural and compressive strength in the later stage and among them the silica fume has greater contribution.

而使用活性掺合料改善用普通硅酸盐水泥做基体的GRC耐久性时，又会带来GRC的早期强度过低及脱模时间过长的问题。

According the known structure of MELs and the composition of broth, the separate and purify process of MELs was studied with silica-gel chromatography and the optimum conditions were: silica gel particle size 200 mesh, washing solution chloroform-acetone mixture (7: 3 for MEL-A, 6: 4 for MEL-B), washing rate 0.25ml/min, washing amount 400ml solvent/g MEL.

1根据已知生物表面活性剂MEL的结构特点和发酵液组成，在提取得到MEL粗制品的基础上，采用硅胶色谱分离技术，确定了MEL的最佳分离纯化条件：硅胶粒径200目，洗脱剂采用氯仿-丙酮混合溶剂，洗脱剂配比为7∶3、6∶4，洗脱速率为0.25ml/min，洗脱剂用量为400ml/gMEL。

T he results indicated that suitable p rocessing technology and the interaction b etween the silanol groups of SiO 2 surf ace and PVC matrix made fumed silica well di spersed in the matrix by nano-meter size, even the fumed silica particles had n ot been treated.

目前的研究主要集中在纳米CaCO3增韧PVC[2～ 5] 。气相法白炭黑作为高分子材料的添加剂、补强剂[6 ] 对聚合物性能的提高和改善受到科研工作者的关注。

Analyses of pH, conductivity, and dissolution of silica were carried out in order to study the purification of Stber silica sols.

通过pH值、电导率和二氧化硅解离量的测定，研究了Stber二氧化硅溶胶的提纯过程。

Analyses of pH, conductivity, and dissolution of silica were carried out in order to study the purification of Stober silica sols.

通过pH值、电导率和二氧化硅解离量的测定，研究了Stfber二氧化硅溶胶的提纯过程。

Spherical silica was prepared from ordinary silica by oxygen-acetylene flame method.

以普通角形二氧化硅为原料，采用氧-乙炔火焰法制备出球形二氧化硅。

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％。