Spare components are on board, including two coolant system pumps, but installation is considered difficult and two spacewalks will be required.
包括两个冷却剂系统水泵在内的备用组件都在舱里，安装工作被普遍认为是艰难的，必须进行两次太空行走。
The texturing system includes four parts: laser source, control system, texturing machine tool and coolant system.
该毛化设备主要包括激光光源、控制系统、毛化机床、冷却系统等四个部分。
The natural circulation ability of PWR (pressurized water reactor) coolant system is one of inherent safeties of this kind NPP (nuclear power plant).
压水堆核电厂反应堆冷却剂系统自然循环能力是这种类型核电厂固有的安全性之一。
This paper introduces the mechanical analysis involved in the design of the main equipment for the reactor and the reactor coolant system for Qinshan Phase II NPP Project.
介绍了秦山核电二期工程反应堆冷却剂系统主设备设计中所涉及的力学分析工作。
The chemical and volume control system functions to maintain the coolant inventory, to control the coolant chemistry and to adjust the boron concentration of the reactor coolant system.
化容系统的功能：维持主系统的水装量，控制主冷却剂的化学性能和调节主系统的硼浓度。
Automatic chip removal, circulation coolant system.
自动排屑，冷却液循环冷却。
The initial phase of reactor cooldown is accomplished by transferring heat from the reactor coolant system to the steam and power conversion system through the steam generator.
停堆初期（第一阶段）的冷却过程：通过蒸汽发生器将反应堆冷却剂系统的能量传输给二次侧的蒸汽。
Based on the motion equation and flow circulation in the system, the flow analysis to reactor coolant system with density locks is given; the action and characteristics of density locks are explained.
对安装有密度锁的反应堆冷却剂系统进行了流动分析，根据流体运动方程和系统的循环流动特性，说明了密度锁的作用和具有的特性。
Based on the motion equation and flow circulation in the system, the flow analysis to reactor coolant system with density locks is given; the action and characteristics of density locks are explained.
对安装有密度锁的反应堆冷却剂系统进行了流动分析，根据流体运动方程和系统的循环流动特性，说明了密度锁的作用和具有的特性。
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