propagation medium

• 传播介质

propagation medium的用法和样例：

例句

1. The atmosphere is a medium for sound waves.
   大气是声波的传播介质。
2. Microwave irradiation as a spread medium and calefaction energy sources is widely applied in all fields of science.
   摘要微波技术作为一种传播介质和加热能源已被广泛应用于各个科学领域。