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平行光束
释义
DEFINITIVE EXAMPLES 权威例句〔reflector〕The parabolic reflector of a searchlight gives a parallel beam.探照灯的抛物面反射镜发出平行光束。英汉大词典
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delivery record book
delivery report
delivery report content
delivery report envelope
delivery revenue
delivery roll
delivery room
delivery room
delivery room
delivery schedule
delivery shed
delivery sheet
delivery side
delivery side of pump
delivery specifications
delivery speed
delivery spring
delivery state
delivery status notification
delivery stocking spout
delivery stroke
delivery technology
delivery tension roll
delivery term
delivery term
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