Asynchronous completion token supported thread pooling by allowing services to release threads back into the pool while awaiting asynchronous responses.
异步完成令牌支持线程池，它允许服务在等待异步响应时释放线程，并将其放回到池中。
2
However, no response is processed and therefore the previous mechanism cannot be used to release the token.
不过，没有处理任何响应，因此先前的机制不能用于释放令牌。
3
Yet, by the same token, it's also about to get hammered as tens of thousands of people begin downloaded the new kernel release within moments of it being available.