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钨加热子
Tungsten heater element
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钨绞丝
Stranded tungsten wire
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阴极射线管静电偏转极的命名方法
Methods for designation of electrostatic deflecting electrodes of cathode-ray tubes
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电真空器件用刚玉粉牌号命名方法
Type designation system for alundum powder for electrical vacuum components
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电真空器件用刚玉粉
Alundum powder for electrical vacuum components
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电真空器件用刚玉粉粒度分布的测定 密度天平法
Test method for granulometric distribution of alundum powder for vacuum tubes - Density balance method
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彩色显像管玻璃中硫的分析
Determination of sulfur in color picture tube glass
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彩色显像管玻璃中氯的分析
Determination of chlorine (Cl) in color picture tube glass
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彩色显像管玻璃中氧化铬的分析
Determination of chromium oxide in color picture tube glass
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