核燃料循环体系包括铀（钍）矿勘查、开采冶炼、纯化转化、同位素分离、燃料元件制造、乏燃料后处理等环节。
Ignore the fact that catch usually means exceptions which usually means some kind of failure. A piece of code is running and it just started some work that’s going to take a long time in the background, there’s no point waiting and the program can do something more useful while the stuff happens in the background. It “throws” an exception that is caught by a scheduler multiple layers of function calls up the stack. The scheduler saves the return address into a list of pending work to get back to, and then goes to find something that it can make progress on. Eventually it completes the other work and is signalled that our background task is complete. It pops the return address off the list and jumps to it, continuing the function call exactly where it left off as though nothing happened.
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it was initially counterintuitive and hard for me to accept as well, but let me really illustrate how it works. in the paper, we describe an example where we want to find author names using context assertions, described roughly as follows:
Much of the project’s history has been lost to time as Internet forums disappeared, but Sultan of Rum has been able to piece together some of the growing pains Tamriel Rebuilt has endured. A struggle between the need to centralize and the desire of some modders to remain independent is a recurring theme.
«Вчера в Индийском океане американская подводная лодка потопила иранский боевой корабль, который полагал, что находится в безопасности в международных водах. Вместо этого он был потоплен при помощи торпеды», — сообщил шеф Пентагона.