查询词典 sieves

The this design structure and sieves ordinary is dissimilar, it has 4 side bars, the middle both sides are main, the vibrator installs above it, by it to the screening surface transmission vibration power, outside two is secondary, only plays keeps off the yard lumber the role.

该设计结构与普通筛不一样，它有4块侧板，中间两侧是主要的，振动器安装在它上面，由它向筛面传递振动力，外面两块是次要的，只起挡料板的作用。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中，我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控，首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料，简记为BMS，并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia／silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等，利用不同的测试手段如XRD，SEM，TEM，〓Si MAS NMR，TG-DTA，N〓吸附测试等进行了系统的表征研究。

The diabetes II patient which through sieves to the Liaoning Province Shenyang Shen River District wind and rain world community inhabitant's community looks up, discovers the diabetes patient newly to send case of illness, when complication does not have any illness complication, causes it separately to accept the self-treatment, the community tracks the treatment, and to all groupings patient in half year, a year, two years, three years carries on the track to pay a return visit.

通过对辽宁省沈阳市沈河区风雨坛社区居民的社区筛查，找出糖尿病患者新发病例，并发病时无任何并发症的糖尿病Ⅱ型患者，使其分别接受自我治疗，社区跟踪治疗，并对所有分组患者在半年，一年，两年，三年进行跟踪回访。

Beta molecule sieves has good catalytic activity in hdrocracking and hydrogenated isomerization, and good adsorption capacity to straight chain paraffin, and also capacity to avoid sulfur, nitrogen poisoning.

beta；分子筛具有很高的加氢裂化、加氢异构化催化活性和对直链烷烃的吸附能力，并有良好的抗硫、氮中毒能力。

The stretched DNA offers a smaller crosssection to the gel pore and thus sieves like a smaller molecule.

本研究考察了DNA样品中不同长度的片段在不同电场强度条件下的迁移特性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐