单元操作 [计] [化工] unit operation ; Operational Address Instruction ; [计] [化工] unit process

二元操作符 binary operator ; Defining new binary operators

一元操作符 unary operator ; unary y operator

单元操作过程 [计] [化工] unit process

一元操作 unary operation

化工单元操作 Unit Operations of Chemical Engineering ; Chemical unit operation

使用三元操作符 Use Ternary Operators

化学工程单元操作 chemical engineering unit operation ; Unit Operations of Chemical Engineering

三元操作符 ternary operator ; Use Ternary Operators

四元操作符 [计] quarternary operator