The data he compiled yielded a mathematical formula for the relationship between a room's echo duration, its quantity and quality of sound-absorbing materials, and its spatial volume.
他收集的数据得出了一个关于房间回声持续时间、吸音材料的数量和质量以及空间体积之间关系的数学公式。
Therefore, suppose the presupposition of economic batch quantity model not to be completely established, its calculating formula shall be needed to be modified.
因此，经济批量模型假设的前提条件并不完全成立，经济订货批量的计算公式也就需要改进。
The formula expressed with the quantity of electromagnetic field is presented for calculating transmission information of the conductor.
并给出了以电磁场量表示的导电介质传输信息的计算公式。
应用推荐