degree of operating leverage
operating ratio
营业比率
运行率
利用系数
营运比率
有效工作系数
操作比
作业比
作业延迟
axial compression ratio and slenderness ratio
zero capital of operating
128-bit operating systems
16-bit operating system
1st grade clean operating room
32-bit operating systems
64-Bit Operating Systems
abdominal operating instruments set
abnormal operating cash flow
abnormal operating condition
Abnormal Operating State
abnormal operating transient
accident operating condition
accident operating conditions
accident operating rules
accidental operating conditions
accumulated operating time
accuracy of operating data