无线信号路径上物体反射信号，部分亦如此

absorb the signal. Examples of objects that can reflect or absorb a wireless signal include walls, furniture, metal objects, and even people. Objects made from materials like wood and fabric tend to absorb the signal more than reflect it, while metal objects and glass tend to reflect it. Different frequencies also interact differently with different materials; for example, lower frequencies are more likely to be absorbed by materials like wood than higher frequencies.