turnovern.营业额；流动；成交量；翻覆；半圆卷饼adj.可翻转的turnover standard周转量标准turnover behavior离职行为turnover of staff员工流失率turnover of stock[经] 存货周转率(额)turnover equation交易方程式turnover-machine翻面机turnover intention离职倾向turnover mechanism翻转机构turnover frequence交岔频率turnover ecosystem生态系统转化