Pd的例句大全

objective to evaluate nut-cracker syndrome ( ncs) with two-dimensional ultrasound ( 2d), color doppler flow imaging ( cdfi) and pulse doppler ( pd).

目的探讨二维超声（2D）、彩色多普勒血流显像（CDFI）和脉冲多普勒（PD）诊断左肾静脉受压综合症（Nut-CrackerSyn-drome，简称NCS）的价值。

objective to investigate the pathogenesis, prevention and treatment of upper gastrointestinal hemorrhage ( ugih) after pancreatoduodenectomy ( pd).

目的探讨胰十二指肠切除术（PD）后上消化道出血（UGIH）的原因及防治。

the spectrum characteristics of synchronous jamming on range and velocity are analyzed. a method for a pd radar to counter the jamming is also discussed.

分析了存在距离-速度同步拖引干扰时的信号频谱特征，研究了一种脉冲多普勒（PD）雷达抗距离-速度同步拖引干扰的方法。

pulse doppler ( pd) processing method, which is widely applied in airborne radar systems, is mainly used in radar systems that detect moving targets under strong clutter background.

脉冲多普勒（PD）处理方法主要应用于那些需要在强杂波背景下检测运动目标的雷达系统，在机载雷达系统中广泛应用。

this paper mainly introduces a project of pd radar velocity tracking. the working status of certain pd radar when it encountered the jamming of velocity deception is analyzed and studied by computer simulation technology based on matlab/ simulink.

主要介绍了一种机载PD雷达的速度跟踪方案，利用MATLAB/Simulink计算机仿真技术分析和研究了某机载PD（脉冲多普勒）雷达在受到速度欺骗干扰时的工作情况。

the diagnostic values of the combination technique of the two-dimensional ultrasound ( 2d), color and pulse doppler ( cd and pd) on the different kinds of thyroid diseases were evaluated.

探讨二维图像（2D）、彩色及脉冲多普勒超声（CD及PD）联合应用对各类甲状腺疾病的诊断价值。

changes of color flow signals in carotid arteries were recorded by color flow imaging ( cfi) and by pulsed doppler ( pd).

彩色血流显像（CFI）及脉冲多普勒（PD）分析颈动脉血流变化。

it has been well-known that gonadal steroid hormones, estrogen especially, plays an important role in protecting the brain from neurodegenerative processes, including parkinson's disease ( pd).

大量研究业已揭示，性腺类固醇激素尤其是雌激素在神经系统退行变性性疾病如帕金森病（PD）中具有神经保护作用。

viq, piq, fiq, the latent period of all the waves of erp and the amplitude of p300 in the aged group of pd and non-aged group of pd had no significant difference ( all p> 0.05).

帕金森病老年组和非老年组的智商、ERP各波的潜伏期及P300波幅之间差异均无显著性（P值均＞0.05）。

microwave high-pressure synthesis of pd nanoparticle and its spectral properties

钯纳米微粒的微波高压液相合成及共振散射光谱研究

the cause of cylinder liner cavitation of nissan pd_6 diesel and its prevention

日产PD6型柴油机气缸套穴蚀的原因及预防

a high noise inhibition pd detector based on the pulse polarity discrimination method is designed in this paper.

本文基于脉冲极性鉴别原理，研制了一台抗干扰能力较强的局部放电测试仪。

sea clutter simulation and acceleration for pd radar

机载脉冲多普勒雷达海杂波仿真及加速

study on technology of bright sn-pd acid alloy electroplating in methanesulfonic acid

甲磺酸盐光亮镀锡铅合金工艺研究

the mr demonstrates an area of mixed signal intensity on proton density (pd) and t2-weighted (t2) images in a left occipital region.

磁共振T2加权像及质子密度像均显示在左枕区有一混合强度信号区域。

study of the uhf shield resonance loop antenna for detecting pd in gis

检测GIS局部放电的超高频屏蔽谐振式环天线传感器研究

The solid base of NaOH adsorbed on MgO or CaO was used as condensation catalyst, and Pd/ C was used as hydrogenation catalyst. 2-Heptanone was synthesized from n-butyl aldehyde and propanone via cross al-dol condensation, dehydration, catalyzed hydrogenation.

用氧化镁或氧化钙负载氢氧化钠（NaOH）固体碱作缩合催化剂，钯/炭（Pd/C）作为加氢催化剂，由丁醛和丙酮经交叉酮醛缩合、脱水、催化加氢制得2-庚酮。

rate-determining step of o~ ( 2-) transportation in the ruo_2| pd| ysz| pd deno_x cell

在RuO2Pd YSZ PddeNO x电解池中O~（2-）传导的速控步骤

five-fold twinned pd nanorods were prepared by square-wave potential electrodeposition.

运用方波电位电沉积法制备了五重孪晶结构的Pd纳米棒。

it is indicated that pda is feasible and effective as the method of pump-storage generator pd test.

现场的应用表明，PDA方法作为抽水蓄能机组绝缘监督的一种手段是可行、有效的。