1·What is PinXin Sunshine Ceiling Hearting?
请问品信阳光天暖是什么？
2·Magnetron has filamentary cathode with small time hearting the shielded cathodic site liquid and air cooling and also the filter built-in by radio.
该磁控管具有加热时间短的阴极，屏蔽阴极，液体和空气冷却，内建无线电滤波。