reck.on.ing
n.(名词)The act of counting or computing.计算:数或计算的行为An itemized bill or statement of a sum due.帐单:列有项目的帐单或表明一笔钱款到期的文件A settlement of accounts:算帐:例句:a day of reckoning.算帐的日子
The act or process of calculating the position of a ship or an aircraft.定位推算:计算某艘船或某架飞机位置的行为或过程The position so calculated.定位推算位置:这样计算所得的位置