tumbling box meaning in Chinese

滚磨筒
滚筒

When finish the cleaning , for the purificant , the tumbling box will be black . it will not affect the use . and after some time it will renew
除垢完毕后，洗衣机滚筒因受除垢液的作用，表面会略呈暗乌色，但不会影响正常使用，洗几次衣服后即可恢复原状。
This machine is used for book cover mounting , the tumbling box come and go , which will holding - in paper into paperboard . simple operated , quick add the favorable price , it is popular in clients
本机台针对书壳封面的装裱成型，靠滚筒来回摆动将粉纸折入至灰卡，操作简单、快捷，价格低廉，颇受客户欢迎。