Rolling paper 卷烟纸
The automatic paper rolling machine comprises machine frame, paper feed roll, upper and lower conveyer belts, paper-rolling drum and air-jet device.
一种自动卷纸机是由机架、放纸辊、上下传送带、卷纸辊、喷气装置组成。
The Calculation method of the rolling bearing reliability is systematically discussed in this paper.
本文较系统地论述了滚动轴承的可靠性计算方法。
应用推荐