Testing materials storage areas 待检验材料存放区
Does the supplier have an authorization system for receipt and dispatch of materials to and from storage areas?
供应商是否有授权系统材料，并从存储区的接收和派遣？
Photochromic materials are widely used in optical information storage, optical switching devices and optical switches and other frontier areas.
光致变色材料广泛应用于光信息存储、光转换器件和光开关等前沿领域。
Oxygen storage materials which have high surface areas and super oxygen storage property were precipitated by ammonium carbonate, and its' phase, oxygen storage capacity, surface area et al.
以碳酸铵为沉淀剂制备一系列高比表面积、高储氧性能的储氧材料，表征了其物相组成，同时对其储氧性能和比表面积进行了测定。
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