tension drum是什么意思

网络释义

1)tension drum,拉紧滚筒2)belt idler pulley,皮带拉紧滚筒3)conveyor idler pulley,输送机拉紧滚筒4)drawing cylinder,拉丝滚筒5)stretching roller,张拉滚筒6)tensioning buoy,拉紧浮筒