abbr.程序流程图(ProcessFlowDiagram);主飞行显示(PrimaryFlightDisplay);个人漂浮设备(PersonalFlotationDevice)
网络 工艺流程图(process flow diagram); 鉴频鉴相器(Phase Frequency Detector); 主飞行显示器(Primary Flight Display)
Principle Control Loops shall also be shown in the PFD.
原理控制回路也应显示在PFD。
An ill-fitting PFD may not provide the expected flotation benefits.
不合身的个人漂浮装置可能无法提供预期的漂浮救生效果。
In unadjusted analyses, women with diabetes and women who were obese had greater odds of having each PFD.
在未经调整的分析中,患糖尿病的妇女和肥胖的妇女罹患盆底功能失调的几率更高。
When the PFD does not generate pulses in lock mode, the charge pump does not provide charge to the loop filter.
当PFD在锁定模式中不生成脉冲时,电荷泵不提供电荷给环路滤波器。
The perturbational finite difference method (PFD) is a new method of constructing high accurate difference scheme.
摄动有限差分(PFD)方法是构造高精度差分格式的一种新方法。