double roller meaning in English

双滚轴
双组镇压器
双磙

Double roller chain coupling
滚子链联轴器
The cloth - extending system adopt double roller to stretch the weaving cloth , magnetic powder to keeping tension , so the weaving cloth can keep straight in the extending process
放卷装置采用双辊放卷，磁粉制动器保持张力，可保持放卷过程中塑编布平直不下卷。
Abstract : the article describes the structure , work principle , design method of the tool parts and the calculation of the bending force of bending die with double roller for load bearing support
文摘:介绍了承力隔架用“双转辊弯曲模具”的结构、工作原理、主要工作零件设计及其弯曲力的计算方法。