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PFD

美英

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)

PFD

PFD

英-英网络释义

PFD

abbr.

1.personal flotation device

2.preferred

2

To the right of that light , above and between the PFD and ND, are two knobs ; these control what systems are linked to the pilot 's displays .

灯的右边，PFD 和 ND 上方中间的位置有两个旋钮；它们用来控制正驾驶显示器显示的系统信息。

4

The top one is the standby flight display -- it looks just like the regular PFD.

上面一个是备用飞行显示器 ——看上去和常规的 PFD 一样。

5

Principle Control Loops shall also be shown in the PFD.

原理控制回路也应显示在 PFD 。

8

The top-of-the- line vest for whitewater rafting makes an excellent PFD for river rescue .

乘筏航行水银的线在顶的背心对于在河上拯救是极好的 PFD 。

9

of Phase Frequency Detector (PFD) and modifying the rest of the PLL blocks .

相位频率检测器（PFD ）和修改其他的 PLL 模块。

10

In the event that the PFD fails , the pilot can still get critical flight information from these backup instruments .

当 PFD 失灵时，飞行员仍可在这些备用设备上读取关键的飞行信息。

11

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。

12

Conclusion Trace PFD exists in eyes. There is no relevance between poisonous development of retina and remaining dosage of PFD.

结论：微量 PFD 存在于眼内，视网膜毒性发展进程与 PFD 的残留剂量无关联；

13

Similar in design to the Stearns SAR Vest PFD, the "Mesh " PFD provides added comfort in warm weather conditions.

相似的设计于 StearnsSARVestPFD ，“网眼 ”PFD 提供加进温暖天气舒适。

15

To the left of the pilot 's PFD is a digital clock with count up timer and sweep second hand .

正驾驶 PFD 左边的是一个配有正数计时器和秒针的数字钟。

17

The dead zone of the PFD is eliminated by adding delay cells in the reset path .

通过在重置反馈路径上加入延迟单元的方法来消除鉴相器的死区。

18

This paper presents a discrete Markov model for analyzing the PFD(avg ).

该文提出了一种采用离散 Markov 模型定量计算 PFD （avg ）的有效方法。

19

There is one little light above the PFD; this is a warning light that tells the pilot when that the below-glidesope alert is active.

PFD 上方有一盏小灯；这是盏警示灯，当低于下滑道警告响起时，它会亮起。

20

I also need a pfd copy of the same .

我还需要一个同样 PFD 的副本。

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