复数： fusions

Of course , pure fusion may also be impossible .

当然，纯核聚变反应堆也可能无法实现。

The researchers addressed this problem by modifying the virus 's fusion protein .

研究人员们通过修饰这种病毒的融合蛋白，解决了这个问题。

Unfortunately bubble fusion is also mired in controversy .

然而，气泡核聚变也陷入很大的争议。

A more plausible approach could come from bubble fusion .

还有一种方式更为合理：气泡核聚变。

So when will inertial confinement fusion be delivering commercial electricity ?

那么惯性约束核聚变什么时候能商业化运营提供电力呢？