roll-welded (monolayered) cylinder

roll-welded (monolayered) cylinder是什么意思、roll-welded (monolayered) cylinder怎么读
【化】 卷焊式圆筒; 卷焊式单层圆筒

roll-welded (monolayered) cylinder汉语翻译

【化】 卷焊式圆筒; 卷焊式单层圆筒