查询词典 P wave

If a P wave refracts out of the rock surface into the air, and it has a frequency in the audible range, it will be heard as a rumble.

如果一个P波折射出的岩石表面到空气中，它有一个频率的发声范围，这将是作为一个听到隆隆。

For three types of gas sands, the anisotropic effects on P-wave AVO in TI media are investigated.

对三类含气砂岩，研究了TI介质中各向异性对P波AVO的影响。

BUse the experimental method to examinate the proposed relation obtained from the numerical simulation. The state of simulated degradation is mainly expressed by the parameters such as speed of P wave, the thickness of upper layer of concrete and interval of cracks.

另一为探讨实际量测混凝土版劣化后其反应频谱各振幅尖峰频率值之关系，并与数值模拟分析之结果相互验证，模拟劣化状况主要是以P波波速、混凝土上层厚度与裂缝间距作为变数，进而探讨对振幅频率的影响。

Based analysis above, we chose the spatial resolution of 1°×1°in the horizontal direction and 5~30 km in depth. Using the pseudobending method to calculate the ray traveling path and residual of travel time; LSQR method to inverse, we got the final 3-D P wave velocity structure in this area.

根据上述分析，以水平方向1°×1°，垂直方向以5 km、15 km、30 km为间隔划分网格，并建立初始速度模型，采用伪弯曲射线追踪方法计算走时和射线路径，通过基于LSQR算法的反演重建了研究区域40 km以下、480 km以上的三维P波速度结构。

All patients had measured left atrium by echocardiogram. Investigate the time limit and incisure of P wave in C group and the relationship between AF was analyzed.

所有入选患者均经超声心动图检测左房大小。C组检查P波时限及切迹并分析与房颤发生的关系。

Notched P wave incomplete interatrial block

P波切迹；不完全性左房内传导阻滞

Objective To analyses notched P wave in clinic.

目的 本文对P波切迹临床意义进行探讨。

P wave discrete degree and variability of herat rate is sensitive to monitor coronary arrhythmia disorder.

P波离散度及心率变异性是监测冠心病心律失常的无创性敏感指标。

The variable characteristics of P-wave amplitude and velocity via azimuth and offset inversed by different models were quantitatively analyzed and summarized.

对不同模型反射P波的振幅和速度随方位角和炮检距的变化特征进行了定量的分析和总结。

Objective: To explore the relationship between P wave dispersion and paroxysmal atrial fibrillation in essential hypertensive patients.

目的：探讨P波离散度和高血压患者并发心房颤动的相关性问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。