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- The physical meaning of dimensionless numbers cannot usually be formulated clearly. 无因次数的物体意义一般不能清楚地用公式表达。
- Dimensionless numbers may result either from counting or from taking the ratio of two quantities expressed in the same unit of measurement. 无量纲的数,或者由计数而得,或者由求两个采用同一计量单位的量之比率而得。
- This paper presents a new normalized tuning method of PID controllers based on two dimensionless numbers form extensive IMC tuning method. 通过扩展的内模整定方法提出了基于无量纲参数(无量纲时滞时间和无量纲过程增益)的PID控制器参数整定方法。
- What good are dimensions then, if we really measure dimensionless numbers? 既然我们测量的是无量纲的数字,那量纲有什么用呢?
- Then descartes product of a set whose dimension number is non-fixed can be resolved when the suspect ver-sion set is taken on as input data. 设计该系统首先要构造可疑版本的集合,然后以此集合为输入,求解出维数不固定的笛卡尔积。
- The cut-off radius of the potential function has effect on the parameters and fractional dimension number of liquid-vapor interface. 势函数的截断半径对汽液界面参数和分维数的模拟值存在影响。
- Based on fractal theory, the density, the temperature, the pressure tensor, the local surface tension and fractional dimension number of liquid-vapor interface at equilibrium are obtained by the help of molecular dynamics simulation. 本文在分形理论基础上,采用分子动力学模拟方法研究了在平衡状态下的汽液界面参数,得了界面区内的密度、温度、压力张量、面张力和分维数的分布。
- He thumbed through the directory to look for her number. 他翻阅电话号码簿找寻她的号码。
- Let me note down your address and telephone number. 让我记下你的地址和电话号码。
- He picked a winning number on the first draw. 他第一次便抽到一个中奖号码。
- The number of fish in coastal waters has decreased. 沿海鱼的数量已减少了。
- The number represented by the digit or digits in2. 在释文2。中所说的由一位或几位数字表示的数。
- The students in our class number thirty. 我班总共有三十名学生。
- I dialed the right number, but nobody answered. 我拨的号是对的,但没有人接电话。
- A number of new hats were on parade at the wedding. 在婚礼上见到有些人戴著新式的帽子。
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- The number shall be cut in on a plate. 号码将雕刻在一块金属板上。
- I seriously question a number of your assertions. 对你所坚持的说法,有几点我甚为怀疑。
- Can you tell me the cancellation number? 能不能告诉我取消号码?
- I slip up and give you the wrong phone number. 我粗心大意给错了你电话号码。
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