Hydrogen collected in the secondary containment buildings, where it exploded, blowing the tops off units 1 and 3, and damaging the cooling system of unit 2.
氢气在第二层安全壳内聚集，最终爆炸，将1号和3号的顶盖炸飞，损毁了2号的冷却系统。
A set of electric control system of unit emergency stop device controlled by PLC was designed.
设计出一套由PLC进行控制的紧急事故停机装置电气控制系统。
Calculating different voltage grade networks of magnetic coupling, is used to convert into a voltage grade or standard system of unit.
对于经过多重变压器耦合的电力系统复杂网络，惯常采用归算到同一电压级或标么值下去进行计算的方法。
Calculating different voltage grade networks of magnetic coupling, is used to convert into a voltage grade or standard system of unit.
对于经过多重变压器耦合的电力系统复杂网络，惯常采用归算到同一电压级或标么值下去进行计算的方法。
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