查询词典 sieve-portion

Usage:teain,aerostat,transfer belt,vehicle,bolt,nut,spring and sieve.

用途：列车、航空器、传送带、车辆、螺栓、螺母、弹簧、筛网。

The raw materials used by the method are green chemicals dimethyl carbonate and p-nitrophenol, and the catalyst is NaY molecular sieve, activated aluminum oxide or activated carbon which is impregnated by alkali metals or alkaline-earth metal compounds.

本发明涉及到一种合成对硝基苯甲醚的方法，该方法所用的原料为绿色化学品碳酸二甲酯和对硝基苯酚，催化剂是经碱金属或碱土金属化合物浸渍过的NaY分子筛、活性氧化铝或活性碳。

The structure of MCM-41 material is different from that of ordinary microporous zeolite molecular sieve, so is that of amorphous aluminosilicate.

发现在不同反应体系里，不同合成条件下，中孔MCM-41分子筛的形成机理不完全相同。

Molecular sieve 3A is a kind of alkali aluminosilicate, able to adsorb molecules with their critical diameters no more than 3A.

分子筛3A现一种碱铝硅酸盐，能够吸附分子与他们的临界直径不超过3 A条。

The mesoporous sieve of the M41S family has framewoks with pore diameters withinthe mesoporous range(2～10nm), huge surfaces areas about 1000cm2/g and amorphism porouswall tent to incorporate hetero atom so that has been used abroad in big moleculer catalysisand separation, life science and environment protection fields and so on.

M41S系列介孔分子筛具有2～10nm左右的规整孔道、大约1000cm~2／g的高比表面积和容易引入杂原子的无定形孔壁等独特优点，被广泛应用在大分子催化、分离和生命科学、环境保护等热点领域。

The efficiency of mass transfer in 60% fraction of hole is higher than in 40% fraction of hole. When gas/liquid ratio is lower 10, the efficiency of mass transfer in new sieve baffle tray is higher than in traditional tray.A three-dimensional quasi-single phase computational fluid dynamics program with the RNG- turbulence model is presented for evaluating the performance of the new sieve baffle tray. The special feature of this model is taking into account the influence of heat transfer during the mass transfer and the influence of mass transfer in computing the flow field.

建立了以RNG模型为基础的三维拟单相流模型，该模型与其它研究者所建立的模型的最大进步是，前人在塔板流场的计算中没有考虑传质的影响，并且在传质过程中没有也没有考虑传热对传质产生的影响，实际上在传质过程中，抛开传热来计算和研究传质是不准确的，因为在传质过程中伴随着传热，并且传热和传质是互相影响、互相制约的，本文所建立的传热与传质模型，把传热和传质进行了有效的藕合。

The company's main products are: metal structured packing, metal bulk fill, efficient jet tray, blister tray, tray sieve, sieve tray-oriented, slant-hole tray, tongue-shaped tray, tray channel , S-Ta Sita board, valve tray, the distribution of gas-liquid, fluid collection, mist eliminator, in addition to Mo screen, float valve, blister board and various sub-tower, solid, and so tight.

本公司主要产品有：金属规整填料、金属散装填料、高效喷射塔板、泡罩塔盘、筛板塔盘、导向筛板塔盘、复合斜孔塔板、舌形塔盘、槽形塔板、S型塔斯塔板、浮阀塔板、气液分布器、液体收集器、除雾器、丝网除沫器、浮阀、泡罩及各类塔板卡子、紧固体等。

Features: high efficiency, small amplitude and high frequency of screening; it differs from the conventional screens with breaking of the surface tension of pulp and small granularity high speed vibration on sieve cover and accelerates the separating of large-density useful mines and increase the contacting probability of the materials smaller than output granularity and the sieve pore.

高频筛效率高、振幅小、筛分频率高。与普通筛分设备的原理不同，由于高频筛采用了高频率，一方面破坏了矿浆表面的张力和细粒物料在筛面上的高速振荡，加速了大密度有用矿物和析离作用，增加了小于分离粒度物料与筛孔接触的概率。

An effective sieve size (ie, sieve pore size and the entire screen surface area ratio) larger, then the screen surface of the unit area of higher productivity and screening efficiency.

对于一定的物料而言，筛子的生产率和筛分效率决定于筛孔尺寸。生产率取决于筛面宽度，筛面宽生产率高。筛分效率取决于筛面长度，筛面长筛分效率高。一般长宽比为2。

At the same time with warehousing, food processing equipment manufacturers: vibration sieve clean-up campaign to stone-series, series of Yarlung Valley, Valley roughness separation Screen series, all kinds of sand roll, iron rollers and dual-use iron Milling Machine series, grade rice sieve Series, Nissan 20 T-150T of large, medium and small-series sets Milling equipment.

同时具备仓储、粮食加工设备制造：振动清理筛系列、去石机系列、砻谷机系列、谷糙分离筛系列、各类砂辊、铁辊和铁砂两用碾米机系列、白米分级筛系列、日产20T-150T的大、中、小型系列多功能成套碾米设备。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。