[经] index numbers of capacity utilization

zhì zào yè kāi gōng lù zhǐ shù ㄓˋ ㄗㄠˋ ㄧㄝˋ ㄎㄞ ㄍㄨㄥ ㄌㄨˋ ㄓˇ ㄕㄨˋ