When exposed to a radio signal, they use its energy to send back the information they contain, mostly a long number identifying an object.
当这些标签暴露在无线电信号下时，它们将利用信号的能量发回其所包含的信息，这些信息大部分是用于识别物品的一长串数字。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
When determining empirical formula with test method, estimation value of estimated parameter in regression equation which is obtained with least square method always is a long number.
用实验方法确定经验公式时，回归方程中用最小二乘方法求得的待估参数的估计值往往是一个很长的数。
应用推荐