no particles中文
無微粒
例句與用法
- If no particles adhered to the wall no reduction in concentration would be found .
如果粒子不被壁所粘附，濃度就不會減少。 - ( 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 )綜合分析了在無顆粒沉積的理想情況下，流動參數、結構參數對微濾效果的影響情況，發現各參數對微濾效果的影響復雜，在膜器優化設計時必須綜合考慮各因素而適當選取，且微濾效果的提高是以過膜器壓力損失的增大為代價的，從而從理論上對實際微濾過程中觀察到的通量隨操作壓力的增大而增大的現象做出了解釋。 - ( 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 )通過顆粒受力分析，推導出外旋流方式下顆粒不沉積膜面的條件和已沉積顆粒沿膜面滾動的條件，認為從減小顆粒的沉積到促使已沉積顆粒沿膜面的滾動等方面，外旋流方式相對外軸向流較容易實現，當膜面上所有點上都滿足上述條件時，在膜面上將無濾餅或形成一阻力較小的動態濾餅層。 - 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 )對外軸向流和外切向流兩種方式下膜器環隙內流場進行變參數數值實驗，作出流場及切應力的分布規律，分析無顆粒沉積時層流條件下流動結構對過濾通量的影響，認為：采用外旋流的方式將對膜面壓力有削弱作用，但并不明顯。
