• 1. 返回差: return difference
• 2. 返回差错: return error
• 3. 返回偏差的平方和: DEVSQ

• 1.利用返回差条件，借助配方方法讨论非线性系统达到最优调节所必须满足的充要条件。
  A necessary and sufficient condition for nonlinear systems to achieve optimal regulator is given by using the return difference condition and completion of the squares argument.
  dict.yoduao.com
• 2.它接收两个输入变量，并返回这两个数值的差。
  It takes two input variables and returns the difference of those two Numbers.
  dict.yoduao.com
• 3.本周被遣返回老挝的这些难民们之前已流离至位于碧差汶府(Phetchabun province)的另一处临时营，并期望获得国际庇护。
  Those bundled back to Laos this week had drifted to another makeshift camp in Phetchabun province, hoping to claim international asylum.
  dict.yoduao.com

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