Parentheses may be used in an expression to indicate the order of operations, in the same way they are used in mathematics.
表达式中可能使用括号来指明运算顺序，这和数学当中是一样的。
In the interaction problem of different parts of solid, the relation of some physics factors' determining is often transformed to the mathematics expression of integral equation.
在变形固体相互作用的问题中，某些物理量之间的关系确定，经常被转化为积分方程的数学表达。
In ancient Babylonian mathematics, the expression of volume formula for the frustum of a square pyramid is much more complicated than its modern form.
在古巴比伦数学中，正四棱台体积公式的表现形式和现代形式相比十分复杂。
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