反向的

The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.

隆起前缘能增进性能关键理由，是因在这些隆起节侧，会产生成对反向旋转涡流。

In a UHF passive RFID system, a reader transmits an unmodulated continuous wave (CW) to tags, which not only provides energy to tags but also serves as the carrier of tag backscatter signals.

在超高频被动式射频辨识系统里，读器传送未调变过之连续波讯号给签，其不但可提供能量给签也签反向散射讯号载波。