This is a structural type of the form { def receiveUpdate(subject:Any) }.
这是一个结构类型，形式是 {defreceiveUpdate(subject:Any) }。
In this case, the structural type is defined by a method with a particular signature.
在这个例子里，这个结构类型由一个有着特定签名的方法定义。
The building's structural type and bearing form were identified.
明确了原有旧楼的结构形式、承载方式。
The building's structural type and bearing form were identified.
明确了原有旧楼的结构形式、承载方式。
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