流量（flow rate）物理题,求救水以 4 m/s的速度流过一直径为5CM的圆孔,what is the flow rate in m3/s?

流量（flow rate）物理题,求救水以 4 m/s的速度流过一直径为5CM的圆孔,what is the flow rate in m3/s? fluent 中设置flow rate weighing（流量比重）是什么意思?（对于一个锅炉烟气出口）一般怎么设? flow rate waht is this 英语翻译Position-to-flow Rate Characteristic Conversion 物理题求救19题 在一道物理题出现了谁的流量,为什么水的质量等于流量乘以密度 初三物理题求救(1-5) 手机上网的“流量”用英语是flow还是traffic? 英语翻译SpecificationsPerformance Specifications Accuracy (linear ranges) Factory tested¹ ± 0.5% of flow rate Typical field installation² ± 1 to 2% of flow rate Repeatability ± 0.1% of flow rate Response time Adjustable from .3 to 30 关于流体力学水流速度问题这学期需要设计一个管道系统,mass flow rate（不知道中文.）是恒定不变的,condenser的管子的直径也是不能变得,问题就出来了,mass flow rate=密度*面积*速度.既然密度,面 初二物理题求救...大神快来 英语单词（有关计算机的）：payload rate,line rate,overhead rate payload rate,line rate,overhead rate FLUENT DPM模型中 Scale flow rate by face area 和inject using face normal direction 急求泵的参数翻译：flow rate varying between 6 and 25 tph 小学六年级下册期末考数学思考题是什么!（给埋答案）求救求救求救求救求救求救求救求救求救求救求救 rate 基础的财务管理 问题（英语的）Assuming two investments have equal lives,a high discount rate tends to favor ________.A.the investment with large cash flow earlyB the investment with large cash flow lateC the investment with even cash flo flow rate of pur pool is 6000 m3/h,and the water volume is 600 m3/h,Flow rate 跟 water volume 分别指的是什么?两者有什么不一样?