unit circumference的意思|示意

The roller has a conveying path to convey the recording medium from the first processing unit to the second processing unit along the outer circumference.

辊具有沿着外圆周将记录介质从第一处理单元传送到第二处理单元的传送通路。

Unit head circumference maximum and mean blood flow velocities per minute of fetal middle cerebral artery were changed little during the normal second trimester.

每分钟单位头围大脑中动脉的最大速度及平均速度在中孕期间变化小。