active core rewarming的用法和样例：
- CNP1500 is a four-loop PWR nuclear power plant with light water as moderator and coolant. The reactor core is composed of 205 AFA-3GXL fuel assemblies. The active core height at cold is 426.4 cm and equivalent diameter is 347.0 cm.
- The hard core in the party make all the decisions.
- The orient has been playing an active role in the world economy.
- This concept is at the very core of her theory.
- He is an active member of the school's stamp club.