To compare with the traditional scheme, the two-fiber single direction channelrotating ring used in IBAS shows more superior.
与传统方案相比，IBAS（综合宽带接入系统）所采用的两纤单向通道倒换环具有更好的优越性。
2
In order to avoid the pollution of the extracting material and the inconvenience of fetching the plug, a rotating shielding door is used for the purpose of the horizontal tangential channel shielding.
水平切向孔道的屏蔽采用旋转屏蔽门屏蔽，避免了活化后塞子取出物污染空间及取放塞子的不便。
3
The slowly rotating turbine gathers the energy from the powerful surges of water pushed through the channel between the Orkney Islands and the north coast of Scotland with every turn of the tide.