An electronic or a mechanical device for the performance of mathematical computations. 计算器一种电子装置或机械装置，用于完成数学计算
A device for igniting the charge of a firearm. 枪机一种用来点燃火器中火药的装置
A device for recording, measuring, or controlling, especially such a device functioning as part of a control system. 仪表，仪器用于记录、测量或拉制的装置，特别是作为控制系统部分的此类装置
They use television advertising as a device for stimulating demand. 他们利用电视广告作为刺激需求的方法。
