aluminium pig铝锭aluminiumn.铝=aluminum（美）aluminium alloy casting die铝合金压铸模aluminium oxide camera tube氧化铝摄像管aluminium profile extrusion铝型材挤压aluminium drawing lubricant铝拉丝油aluminium hydroxydistearate二硬酯酸羟铝aluminium-pressing former压铝机aluminium-backed phosphor[电] 镀铝荧幕aluminium plated steel wire镀铝钢丝aluminium potassium sulfate硫酸铝钾aluminium silico-fluoride[化] 硅氟化铝

1. It's similar to an ordinary record, except that it's read by a laser beam, and the information recorded on the aluminium is digital.
   它以数字形式把信息记录在铝片上，并且由激光束阅读，除此之外，它和普通的唱片很相似。