1·Defining this unary "operator" in Scala is slightly tricky, but it's purely a syntactic nit.
在Scala中定义这种一元“操作符”需要一点技巧，但这只是语法上的问题而已。
2·Applied the theory of unary linear regression, the quantitative relation between the selection and assembly rate of regeneration bearing and the damaged quantity of bearing is discussed in the paper.
应用一元线性回归理论讨论了再生轴承选配率与轴承损伤数量之间的定量关系。
3·Unary operators perform an operation on a single operand, such as returning the negative or positive value of a numeric expression.
一元运算符对单个操作数执行操作，如返回数值表达式的负值或正值。
4·Unary minus always appears on the left side (for example, -1) regardless of the Regional Settings options.
一元负号始终出现在左侧(例如- 1)，与“区域设置”中的选项无关。
5·Unary representation of sparse polynomials and operations.
一元稀疏多项式的表示及运算。