简述变压器油色谱分析的原理。

A. Switch times would exceed 50 ms for an OC-3 BLSR ring.
B. An equal amount of working and protect bandwidth is required.
C. DCC bandwidth is not large enough to handle K1/K2 processing.
D. There is not enough bandwidth in an OC-3 ring to justify BLSR protection.

A. 周向固定传递扭矩
B. 轴向固定传递轴向力
C. 实现轴向动连接
D. 实现装配定位

A. 固件版本包
B. 平台版本包
C. 产品版本包