It is just a matter of specifying the expression grammar.

它只是指定了表达式语法而已。

youdao

This paper implements a mathematical formula recognition tool by establishing a math expression grammar in broad sense and analytical program.

通过建立广义数学表达式的文法规则以及分析程序，实现了基于专家系统的公式识别器。

youdao

The response demonstrates fairly automatic and effective use of grammar and vocabulary, and fairly coherent expression of relevant ideas.

回答中呈现了相当自然有效的语法和词汇的使用，相关观点的表达也十分连贯。

youdao

"Basically it's a freedom of expression,". Jansen says that while she has heard from frustrated educators about the new kinds of mistakes in spelling and grammar in student work, the expanding means of expression brings benefits to the classroom as well.

VOA: standard.2010.01.16

Behavior trees, and other basic concepts of artificial intelligence, might soon be part of the grammar of articulate self-expression.

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