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beam bifurcation
光束分叉
beam bifurcation
beam blank
beam blanker
beam blanking
beam blanking circuit
beam block
beam bombardment
beam bottom
beam bottom board
beam boundary
beam brace
beam bracket
beam bracketing
beam breadth
beam breakup
beam bridge
beam brightness
beam broadening
beam building
beam burst
beam caliper
beam calliper
beam camber
beam cancellation
beam candiepower
beam candlepower
beam carving machine
beam casing
beam catcher
beam cathode
beam ceiling
beam center
beam centering
beam centre
beam centring
beam centroid
beam channel
beam chemistry
beam chopper
beam clamp
beam clipper
beam collimation
beam collimation optics
beam collimator
beam column
beam column construction
beam column structure
beam combiner
beam communication
beam communication set
beam compass
beam compasses
beam component
beam compression factor
beam conductance
beam configuration
beam confining electrode
beam control
beam control apparatus
beam controlling comp...
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