volcanic ash

Study on volcanic ash reactivity of coal cinder at about 900 ℃

低温煤渣火山灰活性的机理研究

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Scientists at the Pacific Northwest Nationallab said they believe the rain may have carried volcanic ash from an erupting volcano in Japan, while Benton Clean Air said its staffers believe dust from central Oregon was the culprit.

西北太平洋国家实验室的科学家们称，他们认为“牛奶雨”可能来自日本一座火山喷发出的火山灰。本顿清洁空气机构则表示，他们的科学家认为，俄勒冈州中部地区的灰尘是罪魁祸首。

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But much about the impact of volcanic ash on jet engines remains unstudied.

但火山灰对喷气引擎的大部分影响仍有待研究.

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Lab. study of a new cement slurry with low density from natural volcanic ash

一种新型天然类火山灰低密度水泥浆的实验研究

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Experimental investigation on mechanical properties of a volcanic ash with different grain size gradations

不同颗粒级配的某火山灰的力学性质试验研究

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Volcanic ash, lapilli, block and bombs.

火山灰 、 火山砾 、 火山块和火山弹.

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Study on Different Coal Rejects Features and Volcanic Ash Activity from Different Areas

不同产地煤矸石特征及其火山灰活性研究

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Mount Unzen has been spewing out volcanic ash, gas, and rock today

云仙山今天一直在向外喷涌火山灰、气体和火山岩。

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A heavy layer of volcanic ash rained down over the Aegean, covering islands and crops.

浓厚的火山灰层大量降下到爱琴海, 遮盖了岛屿和农作物.

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Volcanic ash lofts from the source, the volcano, and diminishes as it move upward.

火山灰会从其来源处, 即火山处升起飘出, 并在向上运动过程中减弱.

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They ignored the erosion of the mountain by the volcanic ash!

他们忽视了山体被火山灰腐蚀的迹象！

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A cloud of volcanic ash is spreading across wide areas of the Philippines.

火山灰云层正在菲律宾大范围扩散。

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According to the radiation-optical quality of volcanic ash we calculated the parameter of radiation-optic .

本文根据火山灰粒子的辐射光学特性,计算了火山灰粒子和平流层本底的辐射 光学参数.

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A cloud of volcanic ash is spreading across wide areas of the Philippines

火山灰云层正在菲律宾大范围扩散。

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Extensive falls of volcanic ash and coarser particles overwhelm and bury all forms of life.

火山灰和更粗颗粒的大量降落,淹没并埋葬了所有生命.

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Study on the Design and Construction Technology of Volcanic Ash Cement Concrete Pavement

火山灰水泥混凝土路面设计及施工技术研究

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Volcanic ash showered down on the town after the eruption.

火山喷发后，小城落了一层火山灰。

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The ancient Romans discovered that volcanic ash made better cement.

古罗马人就发现火山灰使水泥更加坚固.

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Volcanic ash silted up the Columbia River 35 miles away.

火山灰淤积在哥伦比亚河中长达35英里.

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Test flights show no damage by volcanic ash.

试航显示火山灰不会影响飞机发动机工作。

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Exactly, when volcanoes erupt, out comes extremely hot lava, volcanic ash , steam, and so on.

就是, 火山喷发喷出来的东西可是温度很高的岩浆 、 火山灰, 和水汽什么的.

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Mounds of pumice and volcanic ash mark its center, where the volcano remains.

浮石和火山灰的土墩标志着它的中心, 是火山的遗迹.

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Weather satellites have observed a ring of volcanic ash girdling the earth

气象卫星观测到一个环绕地球的火山灰带。

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Study on the Structure of Artificial Silica Fume and Activity of Volcanic Ash

人造硅灰结构及火山灰活性研究

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Mount Unzen has been spewing out volcanic ash, gas, and rock today...

云仙山今天一直在向外喷涌火山灰、气体和火山岩。

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Experts say volcanic ash can cause problems for jet engines.

专家称，火山灰可能造成飞机引擎故障。

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The road to Lake is covered with thick layers of volcanic ash. It's steep and slippery!

前往天池的路面覆盖着厚厚的火山灰. 又陡又滑!

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Mount Unzen has been spewing out volcanic ash, gas, and rock today.

云仙山今天一直在向外喷涌火山灰、气体和火山岩。

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These things on the earth are actually all volcanic ash from volcanic eruptions.

地上的这些物质其实全部都是火山爆发时喷出的火山灰.

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Volcanic ash can badly scratch a jetliner, clog external sensors and damage jetliner fan blades.

火山灰能严重划伤喷气式客机 、 阻塞外部传感器并损坏客机的风机叶片.

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