基本解释[物理学]甚低频发射英汉例句双语例句Cloge detection system of pigging and extrusion tools is adopting very-low-frequency radiowave emission and reception.清管及挤涂工具的阻卡探测系统是采用甚低频无线电波发射、接收。专业释义物理学甚低频发射