unary operation

常见例句

In a unary operation in a mathematical system,one element is used to yield a single result.
在数学系统中的一元运算里，一个元素往往只产生一个单一的结果。
The requested metafile operation is not supported.
不支持请求的图元操作。
The context in which an operator symbol is used always determines whether the symbol represents a unary or binary operator.
对于这类操作符，需要根据该符号所处的上下文来确定它代表一元操作还是二元操作。