Low MU Thoriated Tungsten filamentary heating structure.
低Mu敷钍灯丝结构.
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High MU Thoriated Tungsten filamentary heating structure.
高Mu敷钍灯丝结构.
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B 4 G : Low MU Oxide Coated filamentary heating structure.
低Mu氧化物覆膜灯丝结构.
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Explanation: Comet McNaught , the Great Comet of 2007, has grown a long and filamentary tail.
说明: 2007年的大彗星,麦克诺特彗星, 最近长出了一条长长的丝状尾巴.
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U 4 triode connected: Medium MU small mass filamentary heating structure.
三极管接法): 中Mu小型灯丝结构.
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