A survey to make high density multilayer thick film surface mount assembly and measures adopted for mount design and manufacturing technology for them are introduced.
介绍了研制大面积高密度多层厚膜表面组装件的概况及组装设计与制造工艺上所采取的措施。
2
We forecasted potential of gold mine resource in Wulaga Au geochemical block in the north of Jiamusi block by using the method of ultra-low density geochemical survey.
运用超低密度地球化学调查方法，对佳木斯地块北缘乌拉嘎金地球化学块体的金矿资源潜力进行了预测。
3
The content of the survey involved the volume density, surface and length densities.