U 4 triode connected: Medium MU small mass filamentary heating structure.三极管接法): 中Mu小型灯丝结构.Low MU Thoriated Tungsten filamentary heating structure.低Mu敷钍灯丝结构.High MU Thoriated Tungsten filamentary heating structure.高Mu敷钍灯...

In the poem he laments the destruction of the countryside.在那首诗里他对乡村遭到的破坏流露出悲哀。In this book he laments the slight interest shown in his writings.在该书中他慨叹人们对他的著作兴趣微弱.In the'sonnet - to Science ', Poe laments the d...

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filamentary的音标：filamentary的英式发音音标为：['fɪləmentərɪ]filamentary的美式发音音标为：['fɪləmentərɪ]...

laments的音标：...

lamentations的音标：...