Magnetron has filamentary cathode with small time hearting , the shielded cathodic site , liquid cooling and the filter built - in by radio 它具有加热时间短的细丝阴极，液体冷却和内建无线电滤波。
3.
Magnetron has filamentaryo cathode with small time hearting , the shielded cathodic site , liquid cooling and the filter built - in by radio 该磁控管具有加热时间短的屏蔽阴极，液体冷却和内建无线电滤波。
4.
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。
5.
Abstract : the simplified one - dimensional mathematical model of spontaneous heating process is used to analyze the effect of the change and movement of water vapour in coal stock pile on the maximum temperature reached during the self - hearting of the coal stock pile 文摘:利用简化的自热过程一维数学模型，分析煤堆内水分变化及迁移对煤堆自热所能达到的最高温度的影响。
