The physical strength of paper can be enhanced by appending propriety collagen.在植物纖維中添加適量的膠原纖維可以較大地提高紙頁的強(qiáng)度性能.Screen will keep appending data to the file through multiple sessions.screen會(huì)把多個(gè)會(huì)話的數(shù)據(jù)添加到文件中.There is data overh...