同义词
1)effective delayed neutron fraction,有效缓发中子份额2)effective delayed neutron fraction,有效缓发中子份额<能>3)effective delayed neutron fraction,缓发中子有效份额4)delayed neutron fraction,缓发中子份额<能>5)delayed neutron fraction,缓发中子份额6)total fraction of delayed neutron,缓发中子总份额
