词汇	chromium ores
释义	chromium ores 铬矿石
随便看	doublet refractor double trenching double trend doublet resonant oscillator double trial vectors double triangle boom double-triangle box girder double-triangle gait double-triangle side box girder double triangles six rayed star double triaxialcollapsible test double tricot double tricot machine double trigger double trigonometric series double trill double trimmer double triode double-triode circuit double triode clamp double-triode clamp double triode valve double-triode valve double trip double-trip