Lignin is a characteristic component of secondary walls.木质素是次生壁成份的特征.A new syntan product prepared with tar phenol and lignin sulfonic acid.以工业副产物木素磺酸和焦油酚为主要原料研制出一种新的合成鞣剂.Alkali lignin is an abundant, cheap and renewable...
墙面和地板上都贴着瓷砖。The walls and floors are clad with ceramic tiles.她贴着房间的墙边走到了门口。She skirted round the edge of the room to the door.金鱼聚在一起贴着水面懒洋洋地游着。Goldfish were swimming lazily in a group just under the surface....