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无线电计量
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无线电计量
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无线电计量
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radio frequency metrology
无线电计量
关于无线电测量及其应用的学科。是无线电领域内研究计量单位统一和量值准确可靠性的计量学分支。又称射频和微波计量。
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pneumatic caisson technology
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pneumatic fire extinguisher
pneumatic flow field
pneumatic hammer
pneumatic-hydro connector
pneumatic levitation
pneumatic modular system for automatic control
pneumatic nebulizer
pneumatic pipe collection system
pneumatic power transmission
pneumatic pruner
pneumatic pump
pneumatic pump-fed liquid rocket engine
pneumatic rabbit
pneumatic regulatory systems
pneumatic rock drill
pneumatics
pneumatic seed-metering device
pneumatic separation
pneumatic servos
pneumatic servo system
pneumatic ship unloader
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