1. 精确（性）；准确（性）
    The accuracy of information or measurements is their quality of being true or correct, even in small details.

    e.g. We cannot guarantee the accuracy of these figures.
           我们不能保证这些数据的准确性。

2. 准确无误
    If someone or something performs a task, for example hitting a target, with accuracy, they do it in an exact way without making a mistake.

accuracy

    e.g. ...weapons that could fire with accuracy at targets 3,000 yards away...
           能准确无误地击中3,000码以外目标的武器
    e.g. Every bank pays close attention to the speed and accuracy of its staff.
           每家银行都非常关注雇员的工作速度和无差错率。