pfd

Prepare detailed PFD , P & ID , plant layout , equipment list and control philosophy .

准备详细的工艺流程图、管道仪表图、系统平面图、设备清单和控制逻辑。

However , if conflicts are found in pfd , this specification shall cover .

不过，如果在工艺流程图中发现冲突之处，应以本技术说明书为准。

Operation was the most effective treatment to PFD .

手术是PFD最有效的治疗方式。

Numerical simulation of perturbational finite difference ( PFD ) method

摄动有限差分（PFD）方法的数值计算

Advances in perturbation finite difference ( pfd ) method

摄动有限差分方法研究进展

Add delay cell into the PFD to remove the dead zone .

鉴频/鉴相器中加入延迟单元以消除死区。

However , large remaining of PFD can lead to retina toxicity early .

但大剂量残留的PFD可使视网膜毒性较早发生。

Research Design & Methods : Women were screened for PFD using a validated mailed survey .

方法和设计：妇女先通过一个有效的邮件形式的调查进行筛检。

PFD Test in SLE & DM Cases for Determination of Pancreatic Exocrine Function

胰功肽试验对SLE、DM胰外分泌功能的检查

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。

Questionnaire as an assessment of patient-oriented approach is widely used in the PFD clinical treatment and research .

问卷作为一种以患者为主导的评估方式，在PFD疾病临床治疗以及研究中，应用日益广泛。

There were a lot of academic debate for PFD pathogenesis , and many research progresses have been made .

对于PFD发病机制目前学术界也有很多争论，但也取得了很多研究进展。

The PFD is based on a novel dual edge-triggered circuit and reduced the dead zone .

环路中的鉴频鉴相器采用了双边沿触发的电路结构，有效地减小了传统鉴频鉴相器中的死区。

Compliance to IEC 61508 Means More Than Just Pfd !

IEC61508的合规-意味的不仅仅是Pfd！

The perturbational finite difference ( PFD ) scheme of variational step of convection-diffusion equation

对流扩散方程的变步长摄动有限差分格式

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。

Through the simulation of MATLAB , compared and analysised the control performance of traditional PID and the BP neural network PfD .

通过MATLAB仿真，对传统PID和BP神经网络PID的控制性能进行了比较分析。

Conclusion The rat model of PFD established by functional factors has the characteristics of complicated syndrome ( manifestations ) and unstable changes .

结论睡眠剥夺法所致大鼠模型是对机体施加功能性造模因素所致，该模型具有证候表现复杂、变化不稳定的特点；

The presented PFD can be widely used in high speed , low jitter and low spurious tones PLLs .

这种差分型PFD在高速、低抖动、低假频PLL中有着广泛的应用。

PFD was used as multi-target drug and was approved in Japan for the treatment of idiopathic pulmonary fibrosis .

该药物于2008年11月在日本上市，用于治疗特发性肺纤维化。

PFD Impact Breaker is a new type of high-efficient breaker mainly used in electricity-generating stations for reduction of coal .

PFD反击式破碎机为新型破碎机，主要用于电站碎煤用。

Simulation results validate the new MMFD , the AFC algorithm and linear range extended PFD and CP configuration .

仿真结果验证了新型的多模式分频器自动频率控制及拓展线性区间的鉴频鉴相器与电荷泵结构。

Deign of PFD in CP - PLL Circuits Study on PLL - FM And Demodulation System

电荷泵PLL中PFD的设计锁相调频与解调电路系统研究

This paper is focused on the design of important blocks ( PFD and charge pump ) of Δ∑ Fractional-N Frequency Synthesizer .

本文重点研究了Δ∑小数频率合成器中关键模块（鉴频鉴相器和电荷泵）的设计。

Perimetric fat pad ( PFD ) was isolated and weighed .

分离子宫外周脂肪垫（perimetricfatpad，PFD）并称重；

Objective To determine the changes of anorectal manometry in patients with pelvic floor dyssynergia ( PFD ) .

目的研究盆底痉挛（pelvicfloordyssynergia，PFD）的肛管直肠动力学变化。

Firstly , this paper brings out the requirement of the Safety Instrument System in practical application and introduces the necessity of the PFD evaluation for SIS .

本文通过举例说明如何对一个工艺过程进行风险评估，从而确定满足该工艺过程的安全整体水平并应用于安全仪表系统的设计中。

SAFETY FIRST : Since you will be by water , all children should wear a life preserver ( PFD or Personal Flotation Device ) .

安全第一。只要在水边，孩子们都应该穿上救生衣。

It mainly includes crystal oscillator , PFD , charge pump , loop filter , VCO , divider and so on .

电路主要包括晶体振荡器、鉴频鉴相器、电荷泵、环路滤波器、压控振荡器以及分频器等模块。

The development method of the process flow diagram ( PFD ) is based on a new design method of process flow diagram , adopted in the international companies in recent years .

工艺流程图（PFD）的扩展方法，是国际工程公司近年采用的一种新的工艺流程设计方法。