常量本版本新增

NEconomy|ESTABLISHMENT_UPGRADE_TRANSFER_FRACTION

NEconomy|ESTABLISHMENT_UPGRADE_TRANSFER_FRACTIONloading_screen/common/defines/00_defines.txt:1925

fraction 0-1 of the obsoleted building's establishment inherited by the new building when an upgrade path creates it

定义loading_screen/common/defines/00_defines.txt:1925

0.5