例句與造句

1. A reasonable position of driving nozzle helps to achieve the maximum material flow that also depends on other parameters such as backpressure , properties of conveyed material and driving gas . it is observed that , an increase of convergent section angle is harmful to the pneumatic conveying system , and also influences on the mass flow rate of conveyed material , the distribution of static pressures in injector and the pressure drops of conveying pipe . in addition , within a reasonable scope of air mass rate , increasing the driving jet velocity is more advantageous than enlarging the dimension of driving nozzle
   試驗(yàn)研究發(fā)現(xiàn)，氣體噴嘴位置對氣固噴射器的輸送能力影響最大，氣體噴嘴存在某一最佳位置，而這一最佳位置與背壓、輸送物料特性和輸送風(fēng)特性相關(guān)聯(lián)；氣固噴射器的收縮角對其輸送能力、內(nèi)部靜壓分布和輸送管阻力特性均有適量影響，收縮角增大對整個(gè)輸送系統(tǒng)均不利；在適當(dāng)?shù)妮斔惋L(fēng)范圍內(nèi)，提高氣體噴嘴出口速度比擴(kuò)大氣體噴嘴尺寸更為有利，但氣體噴嘴出口速度過高會增加氣固噴射器和輸送管內(nèi)的能量損耗，給輸送帶來不利的影響；系統(tǒng)背壓與氣固噴射器的氣體噴嘴出口速度的選取有關(guān)。
2. It's difficult to find driven nozzle in a sentence. 用driven nozzle造句挺難的