friction roll是什么意思

用法例句

It is improved to increase the sealing performance and using life of furnace door in the heating furnace that the structure of sealing and compaction for furnace door in car-type heating furnace.

为提高加热炉炉门的寿命和密封性能,通过实际应用,对台车式加热炉炉门的密封和压紧结构作了一系列改进,达到了满意的效果,提高了加热炉整体技术水平。

It is studied on the mostly structure,the work mechanism of the pressure equipment,and the design computing of pressure springs.

针对10 mm剪板机,介绍了其压紧装置的主要结构、工作过程以及压紧弹簧的设计计算。