基本解释n.投射教材(如幻灯片、电影片等)同根派生 英汉例句The Magnetic Field Projectual is a sturdy, transparent acrylic case that holds iron filings in a special viscous fluid. 磁场投射盒是一坚固、透明的压克力板，里面有铁粉在一种特别的纤维性液体里。projectual map 透谬片图