查询词典 P wave

O.'PR1{ M Objective To explore the value of Type O-dip wave or V-spike wave during nonstress testingNST）for diagnosis of umbilical cord entanglement and parturition disposal.

目的 探讨胎儿监护无负荷试验中Type O-dip波或V型棘波对脐带缠绕的诊断及分娩处理中的价值。

The conventional SHPB technique is improved by using a pulse shaper. Pulse shapers technique is used to modify the incident wave and decrease the effect of wave dispersion to ensure stress equilibrium and homogeneous deformation in specimen, and furthermore a constant strain rate is attained during the loading history. The lasting time of acceleration pulse is enhanced to numerable MSEL, which is more close to actual loading.

本文改进了传统的霍普金森压杆技术，采用波形整形技术，改变加载波形，获得了比较光滑的入射波，降低了波的弥散效应，保证实验时火工品试样中的应力平衡和均匀变形，得到了更接近常应变率的动态加载条件，使加速度脉冲持续时间t提高数倍，更加真实的反映了火工品实际加载环境。

On the basis of analyzing the basis geologic characteristics of oolitic beach reservoir, proposed is a method for this reservoir lithology identification using conventional P-wave/S-wave velocity ratio and electric imaging log data.

在对鲕滩储层基本地质特征进行分析的基础上，提出了应用纵横波速度比和电成像资料结合的方法对鲕滩储层岩性进行识别。

From parasternal long axis, LVDd and LVDs were measure by M-mode;From apex four chanmber view, EDV and ESV were measure by simplified Simpson method, LVEF was calculated, and by the pulse doppler of mitral and aortic valves, mitral valve diasolic flow E wave, A wave, ICT, IRT,and ET were measured.

AMI患者74例入院后行超声心动图检查，在胸骨旁长轴用M型测量LVDs，LVDd，心尖长轴切面用简化Simpson氏法测量EDV，ESV，并计算LVEF，多谱勒超声心动图采集测量二尖瓣和主动脉瓣血流频谱，测量二尖瓣舒张期血流E峰，A峰，ICT，IRT和ET，按公式计算Tei指教=/ET。

The latencies of wave a and b showed no significant difference. The amplitude of wave b changed remarkably and peaked after 5 minutes photopic adaptation.

经过分析观察到在不同的明适应时间，a， b波的潜伏期均无明显差异，b波的振幅变化较为明显，明适应5min后记录到的F-ERG，b波振幅值达高峰。

During a study of the plethysmographic wave forms from varioussites it was noted that in somecases the forehead wave form became unexpectedly complex inconfiguration.

在一项多部位波形体积描记法的研究中，注意到一些病例中前额的波形的结构变得出乎意料地复杂。

Glycyrihizic acid can cause the polarigraphic catalytic wave of oxygen. GA scavenging superoxide ion is demonstrated chemically by the catalytic wave at molecular lever.

本文报道的甘草酸及其皂甙类衍生物存在下的氧极谱催化波，从分子水平研究了GA清除超氧离子自由基〓的化学作用机制，证实清除〓的活性基团是GA分子中与C＝O基共轭的C＝C双键，并非-OH基，纠正了文献观点。

The mechanism of the electrode reaction was studied and the polarographic wave was proved to be an adsorption-catalytic wave given by the tri-componental complex as mentioned above.

研究了电极反应的机理并证明该极谱波为由上文提到的三元混配络合物所给出的吸附催化波。

With fault signals of vibration tested in practice, this paper takes frequency-domain half-power bandwidth Gauss wavelets of continuity, index wavelets decomposition and equivalent bandwidth equivalent sampling discrete bi-orthogonal wavelets decomposition as basis, presents scaling correlated analysis correspondingly toward wave making vibration signals, and accurately realizes to decompose different stress wave speeds, and provides a method of analysis and calculation for accurated location and recognition of the polygenetic faults.

根据上述故障力学模型，我们提出并设计了相应的测试系统，对实测的故障振动信号，以频域半功率带宽连续高斯小波、指数小波分解和等带宽等采样离散双正交小波分解为基础，提出了相应的对波致振动信号的尺度相关分析，准确地实现了分离不同的应力波速，为多源故障的精确定位识别提供了分析和计算方法。

Spanning 322km at its entrance, the Amazon is the widest river in the world. Some of its flat channels are perfect for the phenomenon known by local people as the big roar. In wave after wave, the pororoca — a rare instance of water flowing upstream — pours in, up to 257km an hour, in a wall of water that can reach 7m high.

河口宽达三百二十二公里，亚马逊是世上最宽的河流，部分平坦河道是当地人称为大呼啸的河口涌潮壮观景象，一波波河口涌浪以时速二十五点七公里涌上，形成七公尺高的水墙。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。