If you own the class, you can remove the constraint or else do something to enable an implicit reference or identity conversion.
如果您拥有类，则可移除约束或执行某一操作以启用隐式引用或标识转换。
Focusing on the "Farmer-Citizenization" problem, this paper analyzes factors of barriers to farmer's identity conversion and puts out the corresponding methodologies.
本文针对农民的市民化问题，分析了阻碍农民身份转换的因素，提出促进农民身份转变的办法和措施。
When a constraint is applied to a generic type parameter, an implicit identity or reference conversion must exist from the concrete argument to the type of the constraint.
在将某一约束应用于泛型类型参数时，必须存在从具体参数到该约束类型的隐式标识或引用转换。
Their personal experience and the imagination of future help shape the process of identity construction and re-construction through social memory and space-time conversion.
他们对身份的定位，是以移民经历与自身对未来身份的想象为基础，不断建构与重构的过程。
Their personal experience and the imagination of future help shape the process of identity construction and re-construction through social memory and space-time conversion.
他们对身份的定位，是以移民经历与自身对未来身份的想象为基础，不断建构与重构的过程。
应用推荐