critical gradient 中文意思是什麼

critical gradient 解釋
臨界坡降
  • critical : adj 1 批判的，批評的；（在某方面）有鑒定力的 （in）。2 吹毛求疵的；愛挑剔別人的 （of about）。3 ...
  • gradient : adj. 1. 傾斜的。2. 【動物；動物學】步行的，能步行的。n. 1. 〈英國〉（道路的）傾斜度，坡度，坡路。2. 【物理學】梯度，陡度，（溫度、氣壓等的）變化率，梯度變化曲線。
  1. The key to prediction of casting shrinkage / porosity lies in ascertaining the critical value of temperature gradient and niyama criterion. the thesis put forward two methods to ascertain the value, one is which is positive - direction and the other is negative - direction. we verify the realistic arithmetic of temperature gradient method and niyama criterion method by experiment, and we can draw a conclusion that the arithmetic is correct and reasonable in most cases and choice of developing tool is sound

    臨界梯度值和新山判據臨界值的確定是實現縮孔縮松預測的關鍵，本文提出了確定臨界值的正向法和反向法，並以高鉻鑄鐵件縮孔縮松預測和鑄造工藝改進為研究對象，應用正向法，確定了溫度梯度法的臨界值為180 m 。
  2. Critical hydraulic gradient

    臨界水力陡度
  3. The calculating method of critical seepage gradient is brought forward through the mechanics analysis of the soil unit. seepage gradient is divided into three different distributing style, through the analysis of data from sensors, on the basis of the position of the end of bucket foundation and the maximum seepage gradient

    通過對土單元體的力學分析，提出滲流出口的臨界滲流梯度的計算方法，根據桶基端部處是否出現最大滲流梯度，對負壓沉貫過程中滲流梯度的分佈形式進行了劃分。
  4. Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature. the value of the levitation force is determined by the temperature and the gradient of magnetic field. that is the smaller of the gap, the larger of the levitation force when the temperature is fixed, and the value of the levitation force is an exponential function of the gap

    研究表明，當高溫超導體的溫度低於其臨界溫度時，在磁場中開始受到力的作用；受到的懸浮力大小由溫度和磁場梯度共同決定；即溫度一定時，懸浮間距越小，對應的磁場梯度越大，懸浮力就越大，力的大小與懸浮間距成指數關系；而當懸浮間距一定時，溫度越低，對應的懸浮力也越大，且超導體剛進入超導態的一段溫度區間懸浮力增大最快。
  5. This paper gives the general kinetics equation as well as the critical shear stress value ( or the critical press gradient value ) when the chain structure breaks down, and the method to get the structure relaxation time in the " structure capture particle " process

    給出了電流變響應過程的一般動力學控制方程以及鏈崩潰時臨界的剪切應力值（壓力梯度值） ，及俘獲粒子過程中有關結構弛豫時間的求法。
  6. The effect of the pressure gradient on critical reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited

    還研究了壓力梯度對臨界雷諾數的影響，探討了不同壓力場對流動穩定性作用的規律性。
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