单词	old ballast
释义	old ballast 旧道碴
随便看	tension test diagram tension-tester tension tester tension test for anchor tension test for chain cable tension test for loose gear tension testing machine tension test specimen tension theory tension thickening tension-thining tension thinning tension thread guard tension thread guide tension time tension time index tension-time index tension tower tension transducer tension transformer tension travel indicator tension-type tension-type hanger tension under optic test tension unit 家至户晓家藏户有家见户说家谕户晓家败人亡家贫亲老家贫如洗家贼难防家道中落家道从容锋快锋棱锋线锋芒锋钢锋锐锋镝锋面锌锌华