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direction of primary motion
主运动方向
机
direction of primary ...
direction of principa...
direction of propagation
direction of propagat...
direction of pure wave
direction of reception
direction of regenera...
direction of relative...
direction of resultan...
direction of rotation
direction of scanning
direction of search
direction of spiral
direction of steepest...
direction of trade
direction of traffic
direction of transfer
direction of travel
direction of twist
direction of vibration
direction of wave
direction of wave travel
direction of welding
direction of work
direction parameter
direction peg
direction probe
direction ranging
direction ratio
direction ratios
direction rays
direction rectifier
direction register
direction reversal fuse
direction selectivity
direction sense movement
direction sensor
direction sign
direction signal light
direction signs
direction stability
direction switch
direction switching c...
direction test
direction theodolite
direction to a jury
direction valve
direction variable
direction vector
direction-annexed tra...
direction-determining...
direction-finder
direction-finder antenna
direction-finder set
direction-finder-bear...
direction-finding
direction-finding ant...
direction-finding com...
direction-finding device
direction-finding equ...
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