直接加热的热敏电阻:directly-heated thermistor 直接记录式示波器:direct writing oscillograph 直接记录式强震仪:direct record strong-motion instrument ..
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stylus type direct-writing oscillograph 笔式记录示波仪
direct-writing oscillograph 直接记录示波器
direct writing electromagnetic oscillograph 直接记录式电磁示波器
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