专利专业英汉词典
专利专业英汉词典：第89页
back projection
back rest
back rest,adjustable
back scattering
back wash(ing)
back-filling
back-gearing arrangement
back-pedal brake
back-pedal brake with balls for cycles
back-pedal brake with rollers for cycles
back-pedal cycle
back-pressure cylinder
back-pressure steam turbine
back-purging,regeneration
back-rest adjustment
back-siphonage preventer,anti-siphonage device,backflow preventer
back-spacing mechanism
back-transfer arrangement
back-up roller
backcoating
backfilling (backing up)
backfire aerial
backflow preventer (backwater closure)
backflow safety device
background blanking
backhoe (trenchhoe,backacting excavator)
backing blade,strut
backing means
backing roll
backing,rounding
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