reagents and materials

试剂和材料

reading materials───阅读材料

genetic materials───[遗]遗传物质；基因材料

offensive materials───攻击性材料

reading material───阅读材料；[图情]读物

dialectical materialism───n.辩证唯物主义

dialectical materialist───辩证唯物主义者

genetic material───[遗]遗传物质；基因材料

insulating materials───绝缘材料

metamaterials───超材料（metamaterial的复数）

Since the selected materials are all very common drugs and reagents, the cost of the catalyst is reduced to a largest extent.───由于制备催化剂时选用的均为最普通的药品和试剂，从而在很大程度上降低了催化剂的成本。

The Company specializes in diagnostic reagents and biological materials research and development, production and sales, and provide technical advice and services.───本公司专业从事诊断试剂及生物原料的研发、生产和销售，并提供技术咨询和服务。