[经] index numbers of capacity utilization
jiā gōng néng lì lì yòng lǜ zhǐ shù ㄐㄧㄚ ㄍㄨㄥ ㄋㄥˊ ㄌㄧˋ ㄌㄧˋ ㄩㄥˋ lv4 ㄓˇ ㄕㄨˋ