柯林斯詞典casing /?ke?s??/ (casings) 1. N-COUNT A casing is a substance or object that covers something and protects it. 保護(hù)套[oft supp N] ...the outer casings of missiles. ...導(dǎo)彈的外部保護(hù)層。 返回 casing劍橋詞典a covering that protects something 外包裝，箱，盒，罩，套 返回 casing