单词	通寶類
释义	同CURRENCY
随便看	helical discharge helical--discharge helical dislocation helical elastic tube helical element helical end mill helical error helical fin helical-fin section helical flash lamp helical flight helical flow helical flow pump helical-flow turbine helical fracture helical gear helical gear pair helical gears helical gear-- screw gear helical gear; screw gear helical groove helical guide helical instability helical--instability helical line