n.壓紙卷筒；壓盤；滾筒
The machine specially test sponge springiness after pressed by platen. 本機(jī)專門測試泡棉試驗(yàn)物經(jīng)壓縮盤壓縮后,其彈性度值。
But time for washing of platen washing machine is longer, the price is higher. 但滾筒洗衣機(jī)洗滌時(shí)間較長，價(jià)格較高。
