P So here at the bottom, at this point P, there is a loop.
在底部，点，有一个环。
This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性，文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
P and D gain of closed loop transfer function plus some " zero " , it increases bandwidth tracking the trajectory, without contributing to its external interference.
P和D增益对闭环传递函数加上一些“零”，使其在跟踪轨迹时增加带宽，而又不助长它的外在干扰。
Types of heart rate-recovery loop were significantly correlated ( P < 0. 001) with number of diseased coronary arteries.
心率恢复环形态与冠状动脉病变支数相关性良好（P<0.001）。
Types of heart rate-recovery loop were significantly correlated ( P < 0. 001) with number of diseased coronary arteries.
心率恢复环形态与冠状动脉病变支数相关性良好（P<0.001）。
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