1·A method of machining to produce the big bore diameter PTFE sifter of the parts for high speed diazo printer was reported, by using polymer PTFE material.
报道了采用新型高分子材料聚四氟乙烯车削板为原料，机械加工生产高速晒图机的重要部件——大孔径聚四氟乙烯筛板的方法。
2·Small bearings with a bore diameter up to 100 mm can be properly mounted by measuring the lock nut tightening Angle.
孔径最大为100毫米的小型轴承可通过测量锁定螺母的紧固角度正确安装。
3·ChinaAbstract:ObjectiveTo observe the effect of the different bore diameter membranes on the parameters of technologies of Lianhua Qingwen Granules and to optimize the process of membrane filtration.
目的在无机陶瓷膜精制连花清瘟颗粒过程中，考察不同孔径的膜对该体系的适用性，并进行膜过程优化设计。
1·Single plane mean bore diameter deviation.
单一平面平均内径偏差。
2·Bore diameter variation in a single radial plane.
单一径向平面内径变动量。