crossover position

• 中间位置,零位,过渡位置

crossover position的用法和样例：

例句

1. This is because the DME is the symmetry elements, and the carbon-oxygen bond in the middle position.
   这是因为二甲醚是对称性分子，而且碳氧键处于中间位置。
2. The middle position of all the adjusting parts suggest that the instrument has achieved levelness.
   仪器安平时，其各调整部位均应处中间位置。