Finally, the engineering design of the active control coils is introduced in this paper. The problems like insulation, defending and configuration of the coils are resolved.
最后，文章介绍了主动控制线圈的工程设计，研究解决了线圈的绝缘、防护及结构型式等问题。
2
Sound insulation: the design of sound insulation effect to be good enough, must ensure that the active area and the rest area does not affect each other.
隔音：写字楼设计隔音效果要够好，必须保证活动区和休息区互不影响。
3
Five inorganic heat preservation material: foam cement, YT inorganic active wall insulation materials.