产品信息

It has been applied to the research of "The Feasibility Test and Demonstrability of Antenna Structure" ( 040205D2) in the project of The scientific research Unit of China.

②对新一代GPS标准的结构体系进行了说明,阐述了精度产品信息模型中的尺和形位的影响、类型和两者之间的关系。

RISI, a global forest products information source, reports an average paper demand drop of 4% in 2007 with coated freesheet grades down 9%, mechanical grades down 2%, uncoated freesheet down 4%.

瑞西，全森林产品的信息来源，报告的平均需求量下降了4 ％ ，在2007层免费等级下降了9 ％ ，机械等级下降2 ％ ，未免费下跌4 ％ 。