refitment

refitment of furnace and accessory equipment to improve efficiency.

改造加热炉及附属设施，提高热效率。

Some measures for theloop refitment to meet requirements of 4×4 PWR NPP fuel assembly testare also given.

文中还提出了改进该回路的一些措施,以满堆核电4×4燃料组件要求。