Bridge protection systems

Diode Bridge Controller Minimizes Power Loss & Heat in PoE Powered Devices". [2020-02-06]. （原始内容存档于2016-10-18）.  "Reverse-Current Circuitry Protection" （页面存档备份，存于互联网档案馆）

Cryptosystems Fail. Technical report, University Computer Laboratory, Cam- bridge, January 1994. Neil Schlager. When Technology Fails: Significant Technological

塌，每一部分只需几秒就坍塌，整个主跨落入水中的时间不到半分钟。大桥完全遵守建筑规范。事实上，大桥有繫船柱和挡泥板保护（英语：Bridge protection systems）大桥不受撞击，但这些保护措施显然无济于事。 达利号船上的4700个货柜箱中，有13个在大桥垮塌后被压坏，另外有两个货柜箱落

University of Granada." 互联网档案馆的存檔，存档日期2014-10-25. Wang, Alex. Environmental protection in China: the role of law. 2007-02-05. （原始内容存档于2012-05-16）.  Gu, Lin.

National Systems of Marine Protected Areas. Journal of Land Use & Environmental Law. 2005, 20 (2): 333–369. JSTOR 42842976.  Marine Protection, Research