单词upcast
n.: 上抛；向上扔的东西；【矿】上风井
adj.: 向上扔的；向上的；朝上的
v.: 把…向上抛
网络: 向上类型转换；上投；上溯
把…向上抛
向上扔的,向上投掷的;向上的;朝上的
上投,上抛;向上扔的东西;【矿物】上风井,上风口
通风坑
挖出物
上升管
排气坑
断层向上错位
复数：upcasts
When you upcast to a base interface, you can only access the members specified by that interface, just as for upcasting to base classes.
当你上溯到基接口时，你只可以访问由那个接口所指定的成员，就像上溯到基类那样。
As for the upcast operator, if the compiler cannot infer a specific target type from the context, it reports an error.
对于向上转换运算符，如果编译器无法根据上下文推断出特定的目标类型，则将报告错误。
Once an object has been upcast to an interface type, only the members specified in the interface can be used.
一旦把一个对象上溯给一个接口类型，只有该接口中指定的成员才可以被使用。
In this example, a new Calculator object is created and upcast by being assigned to an IBasicCalculator local variable.
在这个例子中，生成了一个新的Calculator对象，并把它赋给一个IBasicCalculator局部变量实现了上溯。
When you use the upcast operator, the compiler attempts to infer the type you are converting to from the context.
在使用向上转换运算符时，编译器会尝试根据上下文来推断出要转换为的类型。
There may be other calls where we have to upcast, and this technique might become cumbersome for clients of the
还有其它地方的调用，我们也得上溯造型，这种技术对于
Investigation into the production of upcast OF copper rods from copper scraps
利用废旧紫铜生产上引铸造无氧铜杆的研究
Research on the key technologies of the high speed hydraulic upcast system
高速液压上抛系统的关键技术研究
Factors Influencing Product Quality of OFC Bar Produced by Upcast
影响上引法生产无氧铜杆坯产品质量的因素
Binding to an Embedded Report Class Upcast to ReportDocument
绑定到向上转换为ReportDocument的嵌入式报表类