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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 the theory of fraction and the reduction scale method that is presented in this paper, fractional dimension numbers of the path and Hurst exponent of molecular motion are obtained. 应用本文提出的约化规模法,获得了不同温度条件下分子分数布朗运动的Hurst 指数和轨迹分维数
- A dictionary of scientific units, including dimensionless numbers and scales 科学量值单位字典
- Please tabulate the numbers in order. 请把那些数字按顺序制成表。
- 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。
- 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 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。
- He gave me a pamphlet for my call numbers. 他给了我一个小册子记录电话号码。
- 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。
