单词	ball bearing
释义	ball bearingˌball ˈbearing noun [countable] Examples EXAMPLES FROM THE CORPUS In the first system the rotation of the mouse's wheels or ball bearing are transferred to rollers. word sets WORD SETS► Mechanical ball bearing, nounbelt, nouncog, nouncombustion chamber, nounconveyor belt, nouncoolant, nouncooling system, nouncrank, verbdifferential, noundisengage, verbdismantle, verbdrive, nounfour-stroke engine, nounfuel cell, nounfulcrum, noungear, nounheat pump, nounhydraulic, adjectiveinertia, nounmechanical, adjectivemechanical engineering, nounmill, nounmillstone, nounmillwheel, nounmomentum, nounmotive, adjectiveneutral, nounnuclear reactor, nounoil pan, nounpivot, nounpropulsion, nounpulley, nounpump, nounrace, verbratchet, nounreactor, nounregulate, verbretract, verbrev, verbrev, nounrotor, nounselector, nounstarter motor, nounstress, nounstressed, adjectivestrip, verbsump, nounsupercharged, adjectivetemplate, nountop gear, nountorque, nountwo-stroke, adjectiveuniversal joint, nounvalve, nounwheel, nounwinch, nounwindlass, noun 1an arrangement of small metal balls that move in a ring, to make a part inside a machine turn more easily2one of these metal balls
随便看	indices indict indictable indictment indie indifference indifferent indifferently indigenous indigent indigestible indigestion indignant indignantly indignation indignity indigo indirect indirect cost indirect discourse indirectly indirect object indirect speech indirect tax indirect taxation

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