contra-

combining form

1. 反对；相反
   against; opposite
   1. contraflow
      一侧双向行驶
   2. contradict
      反驳
2. 声音低八度的
   having a pitch an octave below
   1. a contrabassoon
      低音大管

1. Development of Step Delay Auto-switching Device of High-power Contra-rotary Fan
   大功率对旋风机分级延期自动切换研制
2. The Research Review of the Contra-rotating Axial-impeller Machinery
   对旋轴流式叶轮机械的研究进展
3. The curve of kidney perfusion was contra-parabola and bilateral curves were almost overlap in the normal person.
   肾灌注曲线呈反抛物线形，正常两侧的肾灌注曲线几乎是重叠的。
4. A Phenomenon of Cell Contra-divison
   细胞的逆分裂现象