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脉冲延时器
释义
脉冲延时器
pulse delay unit
随便看
astronomical plate
astronomical point
astronomical position
astronomical pyrometer
astronomical refraction
astronomical research centre
astronomical satellite
astronomical scintillation
astronomical sign
astronomical spectrograph
astronomical spectrophotometry
astronomical spectroscopy
astronomical station
astronomical surveying
astronomical synchronome
astronomical telegram
astronomical telescope
astronomical test
astronomical theodolite
astronomical tide
astronomical time
astronomical time scale
astronomical transit
astronomical traverse
astronomical triangle
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