Two fierce tropical cyclones raged over the South Pacific Ocean in mid-March 2010, the U.S. Navy's Joint Typhoon Warning Center (JTWC) reported.
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台风是发生在热带洋面上的一种强烈的暖性气旋性风暴,是威胁船舶安全航行的最严重的灾害性天气系统之一。
Typhoon, a kind of strong warm cyclonic storms occurring over tropical oceans, is one of the most seriously disastrous weather systems.
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台风是热带气旋的一个类别。在气象学上,按世界气象组织定义:热带气旋中心持续风速达到12级。
The typhoon is a category of tropical cyclones. In meteorology, press the world meteorological organization definition: tropical cyclone center sustained winds up to 12 level.