Use of helical gear in gear pump is an effective measure, which can reduce the mechanical voice and flow pulse.
齿轮油泵采用斜齿轮是降低机械噪声和减小流量脉动的一种有效措施。
Objective:To evaluate the veracity and applicability of the finger volume blood flow pulse method in cardiovascular function monitoring.
目的：评价指端容积脉搏曲线法进行心血管功能监测的准确性和适用性。
Two-time flow pulse transition is put forward to compensate the pulse count, by this method the flow pulse is sum up to assure fill precisely in large volume.
提出采用二次流量脉冲转换方式对流量计的发讯脉冲进行计数补偿，确保大容量时精确发油。
In hydraulic transmission system, the pump's flow pulse frequency and the pipes base frequency affects each other, if the valves shut suddenly, resonance oscillation may take place.
液压系统中阀门(换向阀等)突然关闭时，液压泵的流量脉动频率和管道的基本频率相互作用，可能发生谐振。
Pretty flow pressure characteristics are being realized in the variable displacement pump with valve adjuster. But more violent flow pulse was proved by experiment at the range of higher pressure.
阀式变量泵具有理想的静态流量压力特性，实验发现在高压变量区具有较强的流量脉动甚至脉冲现象。
The electronic control unit allows current to flow through the ignition coil primary winding until it senses a triggering voltage pulse from the speed sensor, or pickup coil.
电子控制单元使电流通过初级绕组直到感知到一个从转速传感器或拾波线圈产生的触发电压脉冲。
The flow sensor made the leaf wheel change the pulse signal, the computer use the pulse number to record the heat water quantity.
流量传感器将叶轮转动信号转换成电脉信号，计算机通过记录脉冲数实现对流过的高温水进行累计测量；
Mud pulse modulation data flow is thin, but current transmitter as far distance transmission means has been widely applied other field, technology is mature.
泥浆脉冲方法目前应用较多，但数据流量稀疏，电流环技术作为远距离传输手段已被广泛的应用于其它领域，技术成熟。
According to the theory of ultrasonic inspection, the principle of flow inspection using multi pulse circulation method was discussed.
根据超声波探测理论，讨论了多脉冲循环法用作非接触式流量检测的原理。
This system can implement constant-head, constant flow-rate and transient-pulse permeability tests of specimen under high confining and pore pressures.
该装置可在高围压及高孔隙水压力条件下采用定水位法、定流量法或压力脉冲法测试岩石的渗透系数。
A numerical model for simulating the oscillating flow characteristics in a high frequency miniature pulse tube refrigerator was developed.
利用数值方法模拟了高频微型同轴脉冲管制冷机内部气流交变流动和换热过程。
Objective: To evaluate the effect of transcutaneous electric pulse stimulation on hepatic blood flow and parenchyma! microcirculation in patients with fatty liver.
目的：探讨经皮的肝脏附近穴位脉冲电流局部刺激对脂肪肝患者肝血流量的影响。
Relay valves convert a sustained air flow from a three-way pilot valve into a momentary pulse or bleed, which shifts a control valve and then closes.
延迟阀可调节从三通控制阀到瞬间脉冲或放气阀的空气流量，放气阀或瞬间脉冲改变控制阀，然后关闭。
Based on pulse test, the pulse response curve and flow recession curve are analysed for studying the structure of karst aquifer medium.
通过脉冲试验，采用测站脉冲响应曲线及流量衰减曲线分析，对后寨河流域含水介质结构进行了研究。
The blood flow frequency imaging of peritrophoblastic artery flowing was searching by pulse Doppler, it was high extending flow and low resistance.
用彩色能量图显示低速血流，用脉冲多普勒寻找高舒张期低阻力滋养动脉血流频谱。
The thickness of blood vessels, inside diameter, area, flow, the length of color flow column, maximum velocity, acceleration and deceleration time were of good value on pulse tension.
对确定脉体有价值的指标是寸口脉管壁的厚度、管腔内径、管腔面积和血流量的大小以及寸口脉血流柱的长度、峰值流速血流、加速度和减速时间。
A special correlation of dynamic liquid hold-up after the pulse flow regime is carried out empirically.
对脉冲流区后的动持液量提出了单独的经验关联。
Capacitive pressure difference sensor is fixed in the center of the tube and connected with the pulse width modulation circuit so that capacitive flow transducer is made up.
把电容式差压传感器固定在管道中央，并配接脉冲调宽电路，即构成电容式流速变送器。
The generalized pulse code modulation (GPCM) control valve is a type of combination valve, and each flow control unit is connected together by mono-block.
广义脉码调制（GPCM）控制阀是一种组合型式的阀，组成的各基元通过液压集成块连接到一起。
Statistical models for random pulse interference flow and for interference flow from sources in limited as well as unlimited quantity arc analyzed and established in this paper.
分析和建立了杂乱脉冲干扰流和来自有限、无限数量干扰源干扰流的统计模型。
Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.
目前，设计的双向脉冲变频控制的直线电机已成功应用于计量泵的驱动器中。
The generalized pulse code module (GPCM) control valve is a type of combination valve, and each flow control unit is connected together by mono-block.
广义脉码调制(GPCM)控制阀是一种组合形式的阀，各基元通过液压集成块连接到一起。
The error in experimental determination of RTD derived from tracer pulse injection, digit time and response measurement, and flow model parameter estimation are discussed.
本文分析了用脉冲法注入示踪剂时示踪剂的分布、时间与应答信号的测量，以及模型参数的回归等方面的种种误差。
Because velocity of flow reduces when the pressure pulse reduces, the noise of impulsion and the noise of vortex increase a little.
因为压力脉动减小导致流速增加，从而使冲击噪声和涡流噪声略有增加。
In this paper a quasi-two-dimensional model of pulse flow in arterial pipe system is established, and non-Newton characteristic of the blood is considered.
本文考虑了血液的菲牛顿流动特性，对血液在动脉管系中的脉动流建立了准二维流动模型。
The pulse flow is induced in a downflow boiling point reactor by vaporization of a portion of the liquid feed at proper conditions.
通过在适当条件下汽化一部分液体进料在下流式沸点反应器中引发脉冲流动。
The pulse type and reverse jet dust collector can obtain higher filtering speed than the oscillating and reverse air flow.
脉冲式、反向射流式除尘器能够比振荡式、反向气流式的过滤速度获得高些。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
A processing flow is proposed to suppress the severe clutter in high pulse repetition frequency (PRF) stepped-frequency radar.
针对高重频频率步进雷达，提出了抑制强杂波的有效处理流程。
A processing flow is proposed to suppress the severe clutter in high pulse repetition frequency (PRF) stepped-frequency radar.
针对高重频频率步进雷达，提出了抑制强杂波的有效处理流程。
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