Héjùbiàn bèi rènwéi shì wèilái de qīngjié néngyuán.
Nuclear fusion is considered a future clean energy source.
Tips
usage
Don't confuse with 核裂变 (hélièbiàn, nuclear fission) — 聚 (jù) means 'gather/come together' (fusion), 裂 (liè) means 'split' (fission). EAST (中国环流器, Zhōngguó huánliúqì) and ITER coverage in Chinese news uses 核聚变 constantly.