opening balance,beginning balance是什么意思

用法例句

Research of buy-back contract under asymmetrical information of the retailer s prior inventory level;

基于零售商期初库存私有信息下的回购合同

At first,the integral average of the solution and the initial function is transformed into 0,then the prior estimation of the solution of the periodic initial problem derived from the original problem is constructeded,thus the existence and uniqueness of the solution of the original problem is obtained.

先将方程的解以及初始条件化为积分平均为零,然后建立与原问题相应的周期初值问题近似解的先验估计,由此得到原问题解的存在唯一性,并证明了在H_(per)~2(Ω)中吸引子的存在性。