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。

youdao

There was some irony in this as early plans for the 8th Air Force had envisaged the need for an escort, albeit with short-range Spitfires.

具有讽刺意味的是，第8航空队的早期计划中也考虑到了对护航的需求，只不过采用的是航程较短的“喷火”战斗机。

youdao

Even relatively low concentrations of air pollutants have been related to a range of adverse health effects.

即便空气污染物的浓度相对偏低，它也与一系列的健康副效应相关。

youdao

Donald Slayton, another Air Force flier, worked on the long-range Atlas Rocket.

VOA: special.2009.06.10

Venezuelan President Chavez said in Moscow Sunday he had obtained a $2.2-billion line of credit from Russia for 90 T-72 tanks and an advanced long-range air defense system.

VOA: standard.2009.09.15

The self-guided Russian R-77 medium-range air-to-air missile is almost as good as the U.S. AIM-120 AMRAAM.

CENTERFORSECURITYPOLICY: Center For Security Policy

In the past week, Pakistan has test-fired two ballistic missiles and India responded by test-firing a new short-range air-defence missile.

ECONOMIST: After the vote

Britain has also helped with air-to-air refuelling, thus extending the effective range of America's carrier-based bombers, and agreed to the use of Diego Garcia, a British island in the Indian Ocean, as a base for heavy bombers.

ECONOMIST: The war in Afghanistan