除了扩展IPSec、IPComp和对IPv 6隧道的支持外，2.6内核还提供了IPv 6隐私扩展。
Besides extending IPSec, IPComp, and tunneling support to work over IPv6, the 2.6 kernel provides IPv6 Privacy Extensions.
世界上最大的科学实验大型强子对撞机（LHC）建在日内瓦外的一个圆形隧道，周长27千米。
The LHC, the world's biggest scientific experiment, has been built just outside Geneva in a circular tunnel with a circumference of 27km.
为保证防水效果，南京玄武湖隧道除结构自防水外还设置了附加防水层。
Besides structural self-waterproofing of Xuanwu Lake Tunnel, Nanjing, an additional waterproofing layer was set up to ensure waterproofing reliability.
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