... 1 参考标准(Reference Starard)·IPC-6012A． 2基材使用(Base Materials Use) 3．1成品板边(Finished Board Edges): ...
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We use spreading Resistance technique to test and analyze silicon and silica base materials. This technique is more suitable to control material quality and develop new materials.
本文利用扩展电阻技术对半导体硅、硅基材料进行测试分析，从而用以开发新材料和评估材料的质量。
Pest free zones or pest can be control by the use of engine oil and other materials in container at the base of stands and also the use of guards.
虫害区或虫害可控制的使用发动机油和其他材料的容器的基础上看台，也使用警卫。
By analyzing land use maps, combining statistic materials, connect the spatial data and attribute data and build dynamic change data base of land use.
通过对土地利用图的空间分析，结合统计资料，将属性数据和空间数据链接，建立起区域土地利用动态变化数据库。
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