Preventing flood is a very important work. In them, underground exploring and permeating water accident are tow important work, so we must do them well.

预防和治理水灾是一项非常重要的工作。其中井下探水和透水事故处理是两项重要工作，必须认真作好预防和治理工作。

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Examples range from contamination of the food or water supply, to high levels of air or noise pollution, a chemical accident, a disease outbreak or a natural disaster.

这方面例子的范围包括从食物或水供应的污染，到空气或噪音高度污染、化学事故、疾病暴发或自然灾害。

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Steam and water continues to be released through the PORV, creating a LOCA (loss of coolant accident).

蒸汽和水通过减压阀持续释放，造成失水事故。

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The popular surfing beaches of Hossegor and Capbreton, 40km north of Biarritz, were closed for 10 days in early May after a motorway accident led to chemicals contaminating the water.

BBC: Where to go while Biarritz battles beach pollution

Tomlinson, who carried this developing fluid disguised as a bottle of Ralph Lauren toilet water, claims the technique was discovered by accident when a secret message from Russia was being decoded in the 1980s.

BBC: Spy tactics revealed by book

Before going out on the water, boaters can minimize the risk of accident or injury by taking a boating safety course, performing a vessel safety check, filing a float plan with a friend or family member prior to departure, and carefully assessing weather conditions.

WHITEHOUSE: The White House