no particles meaning in Chinese
无微粒
Examples
- If no particles adhered to the wall no reduction in concentration would be found .
如果粒子不被壁所粘附，浓度就不会减少。 - ( 3 ) under the ideal conditions of no particle deposition , the complex effects of flow parameters and geometry on performance of microfiltration with outside helical flow were discussed . and it is suggested that when designing , several factors should be taken into account comprehensively . it is noted that increasing mf capability will , at the same time , increase the energy loss of the module
( 3 )综合分析了在无颗粒沉积的理想情况下，流动参数、结构参数对微滤效果的影响情况，发现各参数对微滤效果的影响复杂，在膜器优化设计时必须综合考虑各因素而适当选取，且微滤效果的提高是以过膜器压力损失的增大为代价的，从而从理论上对实际微滤过程中观察到的通量随操作压力的增大而增大的现象做出了解释。 - ( 4 ) the conditions of no particle deposition or making deposited particles move along the membrane surface were determined with the help of the analysis of forces acting on particles , from which , it may be considered that in the helical flow these conditions would be easier to reach than in the axial flow . when these conditions be satisfied in the whole region , there would be no or only a dynamic cake on the membrane surface . in addition , to ensure a long time steady microfiltration , sometimes over - high flux should be avoided
( 4 )通过颗粒受力分析，推导出外旋流方式下颗粒不沉积膜面的条件和已沉积颗粒沿膜面滚动的条件，认为从减小颗粒的沉积到促使已沉积颗粒沿膜面的滚动等方面，外旋流方式相对外轴向流较容易实现，当膜面上所有点上都满足上述条件时，在膜面上将无滤饼或形成一阻力较小的动态滤饼层。 - The main contributions of this work are included as follows : ( 1 ) numerical tests of the outside axial and helical flows were carried out respectively . the velocities and pressure profiles and shear distributions have been obtained and they were compared due to the different flow field . it is concluded that when no particles are deposited , the helical flow would lower the pressure on membrane surface to some little extent but not markedly
( 1 )对外轴向流和外切向流两种方式下膜器环隙内流场进行变参数数值实验，作出流场及切应力的分布规律，分析无颗粒沉积时层流条件下流动结构对过滤通量的影响，认为：采用外旋流的方式将对膜面压力有削弱作用，但并不明显。