英语翻译Why are scientists so optimistic about the favourable aspects of using fusion as a source of energy!how is the development of power from fusion going how much fusion research is going on?where?is fusion currently being used to power anything how long do scientists think it will be before fusion is available as a source of energy?what is a tokamak?知道多少帮多少吧!

英语翻译
Why are scientists so optimistic about the favourable aspects of using fusion as a source of energy!how is the development of power from fusion going how much fusion research is going on?where?is fusion currently being used to power anything how long do scientists think it will be before fusion is available as a source of energy?what is a tokamak?知道多少帮多少吧!