• 这个一般作,而不作倒三角,或者别的,一个算子符号

    Del so, this guy usually pronounced as del, rather than as pointy triangle going downwards or something like that, it's a symbolic notation for an operator.

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  • 这个符号向量算子其中分量微分算子

    That was this symbolic vector operator in which the components are the partial derivative operators.

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  • 一部分简单介绍了本文所涉及到的一些基本定理符号概念以及一些与线性算子有关成果

    In the first part, some fundamental theorem, symbol, concept are introduced, including some valuable results on linear positive operators.

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  • 可以在运算式使用算子符号呼叫算子程序

    You call an operator procedure by using the operator symbol in an expression.

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  • 可以在运算式使用算子符号呼叫算子程序

    You call an operator procedure by using the operator symbol in an expression.

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