pfd

pfd什么意思,pfd翻译

基本解释

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)

例句

• Or at least can create PFD such a way that before conversion to PDF user will not see RTF file.

  或者至少可以创建PFD的这样一种方式，在转换为PDF的用户将无法看到RTF文件。

• 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。

• The average probability of failure on demand is the main basis used to determine the safety integrity level of safety instrumented systems.

  安全仪表系统在一段时间内要求时失效概率的平均值PFD（avg）是评判其安全完整性水平SIL的主要依据。

• 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。

• Principle Control Loops shall also be shown in the PFD.

  原理控制回路也应显示在PFD。

• PFD can occur as a result of injury through strenuous activities like Pilates, biking, and horseback riding.

  PFD可能由繁重的运动——如普拉提、骑单车和骑马等引起的肌肉损伤所导致。

• The two main displays in front of the pilot are the PFD (primary flight display; left) and ND (navigational display; right).

  正驾驶面前的两块显示屏分别是PFD（主飞行显示屏；左侧）和ND（导航显示屏；右侧）。

• 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。

• 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。

• 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。