Lappet norms has exquisite Whether does the lappet norms of crystalline light unite count for much.垂饰规格有讲究水晶灯的垂饰规格是否统一关系重大.The thermophysical characteristics of the natural crypto crystalline graphite were investigated.研...
Carbon steels exist in three stable crystalline phases.碳素钢含有3种稳定的结晶状态.China was the first country in the world to synthesize crystalline insulin, a bioactive protein.中国在世界上最早用人工方法合成一种有生物活力的蛋白质--结晶胰岛素.Diamond is the cryst...