Streams of lava light up Mount Etna during a two-hour eruption on Tuesday night-the peak of the Italianvolcano's fiery week (Mount Etna map).
星期二晚，埃特纳火山两小时喷发中，流淌的岩浆照亮了这意大利火山的山峰。
This, in turn, will lower the depth and turbidity of water in mountain streams, increasing the amount of damaging ultraviolet light that reaches the stream beds.
这反过来又会降低山区溪流的深度和浑浊度，增加紫外线到达河床造成的损害。
To investigate this effect, Clements and his team placed screens over small segments of a dozen mountain streams to block ultraviolet light, and left them there for 60 days.
为了调查由此产生的影响，克莱门茨和其研究小组选取了十几条山间溪流，将遮盖板放置在溪流的某一段以阻挡紫外线对溪床的照射。
A real-time laser particulate detector which is well suited for measuring the concentration of particles in FCC gas streams was developed by using aser and near-forword light-scatter technique.
介绍了利用激光及正前向光散射技术研制的一种激光粒子浓度监测仪，它适用于催化裂化装置烟气粉尘浓度的实时监测。
Happy New Year! Thoughts of you as the light smoke times, curl wish for you is gurgling streams with life.
新年好！对你的思念象袅袅的轻烟不绝如缕，对你的祝福是潺潺的小溪伴随一生一世。
A detailed research on the atomization fineness of a plain orifice injector by light scattering technique under uniform end nonuniform cross flowing air streams.
应用激光散射测雾技术对均匀和不均匀横向气流中单个直射式喷嘴雾化细度作了试验研究。
A detailed research on the atomization fineness of a plain orifice injector by light scattering technique under uniform end nonuniform cross flowing air streams.
应用激光散射测雾技术对均匀和不均匀横向气流中单个直射式喷嘴雾化细度作了试验研究。
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