Natural aerosols are produced by sea salt, desert dust, volcanic eruptions and smoke from forest fires.
天然的浮质是由海盐、沙漠灰尘、火山爆发物与森林火情的烟雾产生的；
The most seismically active region on the planet, the Ring of Fire has triggered countless quakes, volcanic eruptions and tsunamis.
火圈带中已经发生过无数次地震、火山爆发和海啸。
Dioxins are mainly by products of industrial processes but can also result from natural processes, such as volcanic eruptions and forest fires.
二恶英主要是工业过程的副产品，但也可能来自于自然过程，如火山爆发和森林火灾。
In the last decade, floods, droughts, windstorms, earthquakes, typhoons, volcanic eruptions and froese fires have become increasingly common.
过去的十年里，洪水、旱灾、暴风雨、地震、台风、火山爆发和森林火灾变得越来越频繁。
It is gradually slowing down and factors such as disruptions in the earth's core, extreme weather, volcanic eruptions and earthquakes can all influence the precise length of the astronomical day.
地球的自转正在逐渐的慢下来，而像地核分裂、极端天气、火山爆发、地震发生等事件都会影响天文日的确切长度。
Its height often changes when volcanic material accumulates during eruptions and subsequently collapses.
在火山爆发与随后的崩塌过程中，火山物质不断积累，它的高度经常发生变化。
However, its height often changes when volcanic material accumulates during eruptions and subsequently collapses.
然而，当火山物质在喷发过程中积累并随后崩塌时，它的高度经常发生变化。
In 2018 alone, wildfires, volcanic eruptions, hurricanes, mudslides, and other natural disasters cost at least $49 billion in the United States.
仅2018年这一年，山火、火山爆发、飓风、泥石流和其他自然灾害就给美国造成了至少490亿美元的损失。
Which of the following can be inferred from paragraphs 2 and 3 about the Volcanic eruptions of the late first millennium?
有关公元后一千年末期的火山爆发，下列哪一项可以从第2段和第3段中推断出来？
Of course, solar activity is just one natural source of climate variability. Volcanic eruptions are another, spewing gas and dust into the atmosphere.
当然，太阳活动仅仅是气候变化的一个自然因素，火山喷发出气体和尘埃进入大气层也会带来这个结果。
This is in addition to other disasters - last year alone Yogyakarta was hit by deadly volcanic eruptions, landslides and floods.
这还是除了其他灾害的统计——仅去年一年日惹市就遭到了致命的火山爆发，山体滑坡和洪水袭击。
Underwater volcanic eruptions also provide a chance to get up close and personal with observing eruptions, where volcanic plumes act very differently than they do on land.
水下火山爆发也为近距离，个人观测火山爆发提供了机会，在水下，火山熔流与地面火山的活动不同。
Natural disasters are catastrophic events with atmospheric, geologic, and hydrologic origins. Disasters include earthquakes, volcanic eruptions, landslides, tsunamis, floods, and drought.
自然灾害是指大气、地质或水文等因素造成的灾变，包括地震、火山爆发、泥石流、海啸、洪水和干旱等。
Hurricanes, floods, landslides, earthquakes and volcanic eruptions are frequent and deadly events.
飓风、洪水、山崩、地震以及火山爆发频频发生，且项项致命。
Scientists are to outline dramatic evidence that global warming threatens the planet in a new and unexpected way - by triggering earthquakes, tsunamis, avalanches and volcanic eruptions.
科学家们正勾画出一幅引人注目的图景——全球变暖将引发地震、海啸、雪崩和火山喷发，从而以一种新的、出乎意料的方式威胁着这个星球。
Volcanic eruptions are usually preceded by earthquakes large and small.
火山喷发通常发生在地震之后。
Flights over Scotland and Ireland were halted as carriers braced themselves for more disruption from volcanic eruptions in Iceland.
当航空运输公司已经为应付由于冰岛火山喷发引发的混乱做好准备的时候，苏格兰和爱尔兰的航班又暂停飞行。
Favorite hypotheses include an asteroid impact, massive volcanic eruptions in Siberia, and toxic oceans.
人们所热衷的假设包括小行星碰撞，西伯利亚大规模的火山爆发以及海洋毒化等现象。
An eight-point scale called the "volcanic explosivity index" (VEI) allows you to compare eruptions and volcanoes.
你可以通过“火山爆发指数”(VEI)来比较喷发和火山，它把火山爆发分为8个等级。
The separation of the plates created a basin that became the Atlantic ocean and opened up fissures in the Earth's crust, triggering volcanic eruptions that lasted for 600,000 years.
这两大板块的分离造就了一个盆地，形成后来的大西洋。 由于地壳出现了裂缝，于是引发了此后长达60万年的火山爆发。
Pockmarked with sulphurous pits, bathed in intense radiation and shaken by constant volcanic eruptions, Io is the fiery hell of the solar system.
满布着硫磺坑洞，沐浴在经久不息的火山爆发带来的强烈辐射中，震动不断。 伊奥（Io，土卫一）是太阳系中炽热的地狱。
Lava flows and rocks from volcanic eruptions cover most of the land area of Yellowstone.
火山喷发出来的熔岩流和岩石占了黄石公园的大部分地区。
Dust storms, volcanic eruptions, wildfires, and salt spray from the winds over the ocean are the most common and abundant producers of aerosols.
由风传来的的沙尘暴、火山灰、野火灰以及来自海洋的浪花都是悬浮微粒最为普遍、最为丰富的来源。
Rumors spread by mobile phone text messages warning of more earthquakes, tsunami and volcanic eruptions have added to panic on the island.
通过手机短信散布的流言警告说可能会有更多的地震、海啸和火山爆发，这也加剧了岛上的慌乱。
Created from volcanic eruptions two million years ago, South Korea's Jeju Island is a goldmine for nature and history buffs.
两百万年前火山爆发形成的韩国济州岛是自然和历史的金矿。
The previous five mass extinctions happened well before mankind existed and are believed to have been mainly caused by natural disasters, such as asteroid impacts and volcanic eruptions.
之前的五次大规模物种灭绝发生在人类出现之前，而且这些灭绝被认为主要是由自然灾害引起的，如小行星撞击和火山喷发。
The previous five mass extinctions happened well before mankind existed and are believed to have been mainly caused by natural disasters, such as asteroid impacts and volcanic eruptions.
之前的五次大规模物种灭绝发生在人类出现之前，而且这些灭绝被认为主要是由自然灾害引起的，如小行星撞击和火山喷发。
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