但是专家们质疑该计划的可行性，因为此计划要求东京电力公司立即修建一个关键的冷却系统。
But experts question the viability of the plan, which calls for swiftly building critical new cooling systems.
为此增设了流化床冷却系统，满足了扩产改造的要求。
For this purpose, a fluid-bed cooling system is added, to meet the requirements for renovation to enlarge capacity.
针对反应堆的特殊要求，主氦循环风机的设计包括总体结构、叶轮型式、冷却系统、轴承、测量仪表、电气贯穿件和隔断阀。
The design of the helium circulator involves the overall construction, the impeller type, the cooling system, the bearings, the instrumentation, the electrical penetrations, and the shutoff valve.
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