Nuclear power valve repair, replacement nuclear power plant maintenance in the total cost of about 50%.

核电阀门的维修、更换费用在核电站维修总额中约占50%。

youdao

Nuclear power valve repair, replacement nuclear power plant maintenance in the total cost of about 50%.

核电阀门的维修、更换费用在核电站维修总额中约占50%。

youdao