Symbol of operator is the function of operator acting on sine function.
算子作用于正弦波函数所得函数称为算子的象征。
You call an operator procedure by using the operator symbol in an expression.
您可以在运算式中使用运算子符号，呼叫运算子程序。
You call an operator procedure by using the operator symbol in an expression.
您可以在运算式中使用运算子符号，呼叫运算子程序。
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