unknown constant 中文意思是什麼

unknown constant 解釋
未知數
  • unknown : adj 1 未知的,未詳的;未被發覺的。2 數不清的,無數的。n 未[不]認識的人[物];【數學】未知數[量,元...
  • constant : adj 1 恆定不變的,固定的,穩定的,恆久的;繼續不斷的。2 不屈不撓的,堅韌的。3 忠實的,有節操的。n...
  1. But many of those species, known and unknown, are destroyed every day. constant logging, mining and cattle ranching are stripping the jungles clean

    但這些眾多的生物種類當中,不管知名的還是不知名的,有許多每天都在遭到毀滅。不斷的伐木、采礦和放牧正在使雨林漸漸地消失。
  2. On account of the uncertainty existing in the nonlinear ship responded model, we design a dynamic adaptive ship steering controller by using adaptive backstepping. after deducing the update law of the unknown constant, we choose the controller gains to guarantee the closed loop system and the control signal global boundedness

    由於船舶非線性響應模型中含有未知常參數的不確定項,因此採用自適應backstepping的方法,選擇參數自適應調節律,設計動態的船舶航向控制器,實現在線控制。
  3. M : you need not say it is unknown, for you see it in constant operation

    你沒需要說它不知明,因為你看著它經常地運作。
  4. A letter or symbol that represents a particular constant or number, known or unknown, and is not programmer - defined

    文字代表一特定常量或數字的可知或未知的字母或符號,非編程者所規定
  5. As we know, many results on analytic solutions of iterative equations are obtained by constructing a majorant series. for technical reasons, in previous works an indeterminate constant a, as the eigenvalue of the linearization of unknown function at its fixed point, is required to be off the unit circle or lie on the circle with the diophantine condition

    已有的許多關于迭代方程的解析解結果都是運用優級數法得到的,並要求一個作為未知函數在其不動點處的線性部分的特徵值的常數不在單位圓周上或者在單位圓周上但滿足diophantine條件。
  6. Unknown displacement and electric potential jumps in the integral equations are approximated with a product of fundamental density function and polynomials, in which the fundamental density function reflects singular behavior of electroelastic fields near the crack front and the polynomials can be reduced to a real constant under uniform loading

    超奇異積分方程中的未知位移間斷和電勢間斷近似地表示為基本密度函數與多項式之積,其中基本密度函數反映了橢圓片狀裂紋前沿電彈性場的奇異性,而多項式在均布載荷作用下可用一個常數來表達。
  7. By introducing the constant strain as another basic unknown quantity besides the rigid displacement at centroid of block elements, the elasticity of bock elements can be considered and the precision are improved

    引入塊體的常應變作為基本未知量,從而使計算能夠考慮塊體的彈性,大大增加了計算的精度。
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