地址空间块 meaning in English

block of address space

During a collection , the garbage collector examines the managed heap , looking for the blocks of address space occupied by unreachable objects
在回收中，垃圾回收器检查托管堆，查找无法访问对象所占据的地址空间块。
As it discovers each unreachable object , it uses a memory - copying function to compact the reachable objects in memory , freeing up the blocks of address spaces allocated to unreachable objects
发现无法访问的对象时，它就使用内存复制功能来压缩内存中可以访问的对象，释放分配给不可访问对象的地址空间块。