cyclical variation

常見例句

雙語例句

• When the white noise level(coefficient of variation) increases to 20%, the cyclical fish population becomes spasmodic.
  在白色噪音水平（變動系數(shù)）增加至2 0 %時，周期型種群變?yōu)椴环€(wěn)定型。
• Methods Dummy variable is introduced into the linear regression equation to correct cyclical variation and reduce error of forecasting.
  方法在線性回歸方程中引用啞變量，修正周期性變化，降低預測的誤差。
• The result shows that the bichem value has a cyclical fluctuation that is closely related to menstrual cycle and the variation is obvious.
  研究結果表明：運動員的血紅蛋白值呈周期性波動，這種波動與月經(jīng)周期有密切聯(lián)系，波動的差值有顯著性差異；
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