流量累积

径流量累积过程与产沙累积过程均呈幂函数分布。

The processes of runoff and sediment yield were described as power function . 5 .

运用有限元软件CFX分析了无阀泵的动态工作过程及无阀泵的瞬时流量、累积流量随驱动幅值和驱动频率等参数的变化规律。

The dynamic working process of valve-less micropumps and the variation rule of mass flow and accumulative mass flow under different amplitude and frequencies are analyzed with CFX .

SAP32例，CVVH治疗用高置换液流量、累积血流量最大、10~48小时为1次的间歇治疗方法，以APACHEⅡ评分为观察指标；

32 cases with SAP were received intermittent CVVH treatment by a high volume way , in which accumulated hemofiltration volume always reaches the maximum , 10 to 48-hour as a course , APACHE ⅱ scores were measured ;

运用流量计系数修正瞬时流量与累积流量误差，能显著提高管道泄漏检测定位精度。

Revising the error between transient flow and integrated flow with flow coefficient can increase positioning accuracy in pipeline leakage detection evidently .

并且用来检定煤气表，记录煤气表的瞬时流量、累积流量和基本误差，最后自动打印上述各项检定参数。

Its functions include verification of gasometer , recording of instantaneous flowrate , cumulative flowrate and basic error of gasometer , and automatic printing of above-mentioned verification parameters .

PLC在流量显示和累积计量上的应用

PLC Application in the Flow Measurement and Totalling

提出一个高效精确的带宽测量方法，消除背景流量和误差累积的影响。

An efficient and precise methodology of bandwidth measurement is proposed for avoiding effect of cross traffic and error accumulation hop-by-hop .

实验分析结果表明，背景流量和误差累积是影响测量性能最主要的因素。

The results of these experiments show that the cross traffic and error accumulation are the main causes for effecting the precision of measurement .

本文提出一个高效精确的带宽测量方法，消除背景流量和误差累积影响，降低测量负载，提高测量速度。

An efficient and precise bandwidth measurement algorithm is proposed . It can avoid effect of cross traffic and error accumulation , reduce workload imported by measurement and improve measurement speed .

不同雨型条件下，各降雨强度对坡面径流量、侵蚀产沙量的贡献率明显不同；坡面累积径流量和累积侵蚀量随降雨历时的延长而递增，但是增涨幅度不同。

The contribution of rainfall intensity on runoff and soil loss was different under different rainfall patterns . Cumulative runoff and soil loss increased with rainfall duration continued , however , the growth rate of different period was various . 3 .

可以与多种脉冲信号输出的流量变送器配套使用，精确地测量液体、气体和蒸汽等流体介质的瞬时流量、累积流量和质量流量。

Connected with flow transducer outputting impulsive signal , it can measure the instant flow , accumulative flow , mass flow of the liquid , the gas or the vapour .

流量积算仪采集4～20mA的流速、压力和温度信号，计算出实时的标准状况流量，然后对流量进行累积计算，通过液晶显示屏显示实时流量、累积流量、温度、压力以及历史流量。

The flow calculator transfers the flow rate , pressure , temperature analogue signal to digital , then calculates the real time flow in standard condition and cumulates the flow . The real time flow , cumulate flow , history flow , pressure and temperature are displayed on the LCD .