fixed antenna造句

Normally the first way to fix antenna effect is changing metal layers . insering diode is the last way . p & r tools can handle this automatically
加二极管的原理易懂，通过接地释放静电。但加跳线的原理能不能解释一下，这个我了解得不是很清楚，谢谢！
Note : if outdoor walls contain much metal ( such as reinforcing bar , shielded network , etc . ) , which absorbs relatively more signals , bracing frames shall be used to fix antennas , leaving a certain distance among antennas and walls in order to reduce signal absorption
注意：如果外墙壁中含金属（如钢筋，屏蔽网等）较多，其对信号的吸收较多，请使用支撑架将天线固定，使天线与墙壁有一定距离，以减少对信号的吸收。
It's difficult to find fixed antenna in a sentence. 用fixed antenna造句挺难的