phv

However, another problem, the de-coupling between PHV and the earth appeared because the weight of PHV is not far great than the output force of the system.

耦合方式是把整车的重量压在激震器基板上，由于整车的重量远大于激振器的输出力，所以耦合效果较好。

互联网摘选

Experiments in Tangshan area demonstrated that PHV works efficiently and stable, and has advantages over other non-explosive seismic source.

PHV在唐山地区的实验结果证明它能够稳定、有效的工作，而且优于其它非爆炸性震源。

互联网摘选

Note: Farm Animal Sounds requires MorphVOX 2.0 Voice Changer Software to run.

注: 农场动物的声音,需要morphvox2.0语音更换运行软件.

互联网摘选

Objectives To investigate the effectiveness of PHV combined with low PEEP for severe asthma.

目的探讨允许性高碳酸的血症（PHV）联用低呼气末正压（PEEP）通气治疗危重哮喘的效果。

互联网摘选

Let's dig into Graphviz to understand how a call graph is generated from the connectivity matrix.

让我们深入研究Graphviz，了便理解如何从连通矩阵生成一个调用图。

互联网摘选

Study of comparison between Wacker and PHV in reflection seismic survey for metallic orebody

轻便可控震源与夯击震源在金属矿地震勘探中的对比试验研究

互联网摘选

To Study management of respiratory failure tape I through nasal mask pressure support Ventilation ( PSV) and guiding signif cation by concepts of permissive hypercapnia ventilation ( PHV).

探讨经鼻压力支持通气（PSV）治疗Ⅱ型呼衰的效果及对可允许高碳酸血症通气（PHV）治疗的指导意义。

互联网摘选

Methods 12 severe asthma patients were treated with PHV combined with low PEEP ventilation. Ventilation mode was set as volume control or assistant/ control with PHV ( PaCO 210.6 kPa, pH7.15).

方法12例危重哮喘患者采用容量控制或辅助/控制模式并采用PHV通气策略（PaCO210.6kPa，pH7.15）。

互联网摘选

Design and industrial application of DOCP ( jl) catalyst for PHV upgrading

提高汽油辛烷值催化剂DOCP（jl）配方设计及工业应用

互联网摘选

An experiment of portable high-frequency vibrator ( PHV) seismic reflection at dashihe iron mine of hebei province was conducted.

在河北省迁安大石河铁矿进行轻便高频可控源（PHV）地震反射勘探的试验研究是成功的。

互联网摘选

Portable High-frequency Vibrator ( PHV), a kind of non-explosive seismic source for engineering and shallow seismic survey, originated from Chirp Radar, thus its main function is to transmit power amplified Chirp signal with strictly controlled parameters to the earth.

轻便高频可控震源（PHV）是一种用于工程探测和浅层地震勘探的非爆炸性震源，其工作原理来源于Chirp雷达技术，它的主要任务是向地下发射参数得到严格控制的Chirp信号。

互联网摘选

The advantages of PHV mainly are high-resolution and free choice of sweep frequencies and the amplitude spectrum control for sending the energy to underground.

可控震源的优点主要在于分辨率高、可以自由选择频率范围，对输入到地下能量的频谱有一定的控制作用。

互联网摘选