1) bi-layer grounding network
双层地网
2) two-layer cable net
双层索网
1.
This paper studies the natural vibration feature of orthogonal two-layer cable net in circular roof,gets the approximate solutions of two-layer cable net\'s natural vibration with Galerkin principle and L-P method,and analyzes the impact of temperature,amplitude and other factors to the natural vibration.
研究了圆形屋盖正交双层索网支承体系的非线性固有振动特性,采用Galerkin原理及L-P法求得了正交双层索网支承体系非线性固有振动的近似解。
3) double layer grid truss
双层网架
1.
Strengthening design and conduction of double layer grid truss;
双层网架结构的加固设计与施工
5) double layer network
双层网络
1.
Discussed the concept of GSM-R double layer network,analyzed and compared different designs of GSM-R double layer network,proposed network design suggestions according to different line,and analyzed active-standby and load sharing in GSM-R network.
阐述了GSM-R双层网络的概念,分析比较了GSM-R双层网络的各种设计方案,针对不同铁路线路提出了设计建议,并对双层网络中主备用和负荷分担2种工作方式进行了研究。
6) double-decker ventilation net
双层风网
补充资料：地网
1.地上的网罗。比喻危难凶险的境地。 2.比喻对敌人的包围圈。 3.指用作防御工事的壕堑水沟。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条