目的评价不同类型口罩滤材对非生物颗粒气溶胶和微生物气溶胶过滤效率。
Objective To evaluate the filtration efficiency of different types of mask filtration materials against non-biological particles aerosol and microbial aerosol.
清洁滤料过滤阶段，就过滤速度对过滤效率的影响进行实验研究，验证了临界过滤速度的存在性。
Under stationary filtration condition, firstly the author took the study about the effect of filtration velocity on filtration efficiency. The research shows that there exists a critical velocity.
试验证明，该粗滤器具有过滤效率高，进气阻力低，粗滤自动排尘，结构简单，安装方便，成本低的优点。
The test results show the filter has advantages of high filtering efficiency, low intake resistance, automatic dusting, simple structure, convenient installation and low costing.
使用传统滤料的袋式除尘器在操作过程中存在过滤阻力高且随时间波动大、对于微细粉尘过滤效率低、反清洗频率高等缺点。
The shortcoming of traditional filter media, such as high and fluctuating resistance, low efficiency for very small size dust, high frequency of regeneration etc.
通过实验说明了超细合成纤维滤料具有极佳的过滤效率和低阻力，是生产防SARS医用防护口罩、防护服及正压过滤器的理想滤材。
Super fine fiber have excellent filter efficiency and low resistance, it is ideal filter materials in producing medical protective mask, protective clothes and positive pressure fi…
通过实验说明了超细合成纤维滤料具有极佳的过滤效率和低阻力，是生产防sars医用防护口罩、防护服及正压过滤器的理想滤材。
Super fine fiber have excellent filter efficiency and low resistance, it is ideal filter materials in producing medical protective mask, protective cl...
平行平板理论模型和多相混合模型的计算结果均表明：（1）随着气、液流量的增大，生物膜滴滤塔降解甲苯的净化效率均降低。
The results of parallel plat plates model and the multiphase mixture model both show that: (1) the purification efficiency of trickling biofilter reduces as the gas or liquid flux increasing.
本文的研究结果为优化袋式除尘器提供试验数据，达到提高除尘效率，减小运行阻力，延长滤袋使用寿命，降低袋式除尘器运行维护费用的目的。
The data to optimize the bag filter was offered, which will be helpful to optimize the structure, improve the efficiency, decrease the resistance, protect the bag and reduce the run cost.
充填效率随携砂液中砾石浓度、滤失量及砾石直径的增加而降低。
The packing efficiency decreases with the increase of gravel concentration in injected liquid, fluid loss to formation and gravel size.
该机可提高各种滤袋的缝纫质量，提高效率，降低操作难度。
This has improved the sewing quality of various filter bags, enhanced the efficiency and made the operation easier.
该系统的使用不仅替代了滤棒的人工取样和调整，也提高了调整精度和检测效率。
The system replaced manual sampling and adjustment, and improved adjustment precision and test efficiency.
整机设备运行稳定、使用寿命长、滤袋更换少、运行费用低、除尘效率局。
The machines works steadily in a whole unit way, achieves longer service life, less bags renewals, low operational cost and high dust removal efficiency.
本文介绍了国外使用的几种耐高温纤维及其性能，袋式滤材的加工方法以及滤材的表面结构对除尘效率的影响。
This article introduces the characteristics of a few types of high-temperature fibers, processing way of filtration bags and their surface structure which influence efficiency de-dusting.
本文还依据空气过滤理论，进行了大量的理论计算，绘制了关于纤维型滤料的效率、阻力和各有关因素之间的关系的曲线。
The curves of the relation between efficient value of fibre filter medium, resistance and other variables have been plotted based on the air filtration theories and theoretical calculations.
非织造针刺滤料因其加工简便，除尘效率高而日益受到人们的青睐。
Nonwoven needle-punched filters with simple process and high filterability find favour with people increasingly.
从研究纤维束滤料的传质效率—水头损失特性出发，确定了纤维束过滤器的技术参数。
By making study on the characteristics of mass transfer efficiency-head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
在复配助滤剂的协同作用下，减压抽滤有助于提高液压油的净化效率、净化质量。
Cooperating with composite filter aid, vacuum filter help to improve the quality and efficiency of purification of machine oil.
本发明提供了一种制造成本低，滤板拉开效率高 的分组拉开滤板的压滤机。
The invention also provides a filter press expanding filter plates according to group, which is low in cost and high in filter plate expansion efficiency.
该脉冲滤筒除尘器具有除尘效率高，阻力损失低，节约除尘系统的动力消耗的优点，有利于在超细粉体净化工艺中的应用。
The pulse cartridge dust collector has advantages of high dusting efficiency, low resistance loss and economized power consumption, benefiting its application in the purification of ultrafine powder.
筛网不易堵、不易坏、可以连续进料，滤浆效率高，处理量大，且可降低能耗。
With high filtering efficiency, and large treatment quantity, the utility model can reduce energy consumption.
滤袋是决定袋式除尘器除尘效率和工作温度的关键元件，更换滤袋的费用又是袋式除尘器的主要维修费用。
The filter bags are the key elements which determine the dust collecting efficiency and working temperature. Renewal of bags creates major cost in maintaining bag-house.
从研究纤维束滤料的传质效率一水头损失特性出发，确定了纤维束过滤器的技术参数。
By making study on the characteristics of mass transfer efficiency - head loss of fiber bundle media, the technical parameters were determined for the fiber bundle filter.
通过大量试验，测定了空气过滤器中效滤材的滤菌效率。
A great number of experiments were carried out on measuring the bacterial removal rate of medium-efficiency filter material in air filters.
本发明提供一种高压高强度的石膏砌块及其在压制成型过程中自动滤水的连续成型机，以提高工作效率和改善石膏砌块成型质量和性能。
The present invention provides a high-pressure high-strength gypsum block and its automatic water-filtering continuously-forming machine used in the course of press-forming process.
本发明提供一种高压高强度的石膏砌块及其在压制成型过程中自动滤水的连续成型机，以提高工作效率和改善石膏砌块成型质量和性能。
The present invention provides a high-pressure high-strength gypsum block and its automatic water-filtering continuously-forming machine used in the course of press-forming process.
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