In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。He crunched the sheets of paper in his hands.他把那沓纸揉得嚓嚓响。The wood was cut into large sheets of veneer.木料被锯成大块的薄板。...
She turned him in the bed so that the sheets wouldn't chafe his skin into sores...她帮他翻了个身，免得他生褥疮。Sheets of postage stamps are perforated.一张张的邮票都打过接缝孔.In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相...
内部的口袋将是和外部的乙烯基相同的颜色.Inside pockets shall be same color as outer vinyl.为了增强紧凑性,折边的榻榻米周围还布置了乙烯基塑料地板.To advance its tenseness , hemmed tatamis were arranged together with vinyl flooring.以二丙酮醇和丙烯腈为原料,利用简便、温和的反应条件合成新型乙烯基功能单体-...