P-loop 位点 ; 结构 ; 成孔区域
frontalplane p loop 额面P环
frontal plane p loop 额面P环
P-V loop 容积环 ; 容量环
P-E loop 电滞回线测量
I-P control loop IP控制回路
closed-loop P-type 闭环P型
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。
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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