back tops是什么意思

用法例句

Analysis is done to the difference between the stationary tops and back tops.

分析了生产中固定盖板和回转盖板作用的不同之处 ,指出目前还不能完全用固定盖板替代回转盖板 ,而应改进两者的规格、结构、材质 ,以发挥出更大的梳理效

Old carding machines:Decreasing the number of revolving flat and increasing that of stationary flat;

梳棉老机减少回转盖板根数增加固定盖板根数的研究

Modification Practice of A186 Series Carding Machine Flat Reversal;

A186系列梳棉机盖板倒转的改造实践