turnovern.营业额；流动；成交量；翻覆；半圆卷饼adj.可翻转的turnover pickup翻转式拾音器turnover ratios[经] 周转比率turnover intent离职倾向turnover number转换数turnover-case周转箱turnover labour补替工turnover factor更替因数turnover collar翻领turnover device翻钢装置turnover radius转向点半径