观测证明，（解决这个谜团的）关键是一种叫做针状体的东西，它从太阳的表面向日冕层释放出称为等离子体的高温气体。
The key, it turns out, are called spicules, which vent hot gases, called plasma, from the sun's surface into the corona.
蜗壳层混凝土被称为电站厂房混凝土的“心脏”，是最关键和最难浇筑的部位。
The concrete for snail shell layer is called 'heart' of concrete used in the plant building of the power station, also it is the Most essential and difficult to pour part.
蜗壳层混凝土被称为电站厂房混凝土的“心脏”，是最关键和最难浇筑的部位。
The concrete for snail shell layer is called 'heart' of concrete used in the plant building of the power station, also it is the Most essential and difficult to pour part.
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