题目给出了积分的条件，就必须要弄清楚，什么是积分的函数，什么是积分区域。
When you are given a piece of data in the statement of a problem, you have to figure out whether that is part of a function to be integrated or whether that is part of the region of integration.
要学习本教程给出的材料就必须满足以下假设或先决条件
The material presented in this tutorial is predicated on the following assumptions or prerequisites
因此，相同的目标的三条踪迹(即给出三个位置)是能够上报给MPC并发布在申请确认页面(CP)的必须条件——达到我们目的的第一步。
Thus, three trails (giving three positions) of the same object are needed for the MPC to post an FMO on the Confirmation Page (CP), the first step on the path to our goal of an MPC designation.
但对于多时间尺度的电力系统模型降阶问题而言，还必须研究快流形的存在性及其基本特征，以给出固定系统慢动态的降阶条件。
But for a multi time scale power system, existence and fundamental characteristics of fast manifolds must also be studied in order to obtain the model reduction condition of fixing slow dynamics.
给出了电路元件的设计公式和必须满足的条件，最后用实验证实了理论分析的正确。
The formula and the necessary condition for component design in the circuit are given. Finally, the correctness of theoretical analysis is verified through experiments.
给出了电路元件的设计公式和必须满足的条件，最后用实验证实了理论分析的正确。
The formula and the necessary condition for component design in the circuit are given. Finally, the correctness of theoretical analysis is verified through experiments.
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