Analogous to a snow avalanche on a steep mountain slope, an incoming light pulse initially frees just a few charge carriers which in turn free others until the original signal is amplified many times.
像陡峭山坡上的雪崩一样，一束入射光的脉冲最初仅仅释放少数的电荷载子(charge carrier)，这些电荷载子再轮流释放其他的载子，直到原始信号被放大很多次。
This disaster is one of the most devastating examples of a very common event: an avalanche of snow or ice.
这场灾难是冰雪雪崩这一常见事件中最具破坏性的例子之一。
The kind of avalanche that destroys trees, cars, buses, even houses! Tens of thousands of tons of snow were coming straight down the mountain behind me.
这种雪崩会摧毁树木、汽车、公共汽车，甚至是房屋！成千上万吨的雪在我身后的山上直冲下来。
Part of a cross-country skiing track disappears in snow dust as an avalanche tumbles down a slope in Tuca, Spain.
发生在西班牙涂擦市的雪崩部分越野滑雪赛道部分消失，沿着斜坡一路翻滚下来。
A hanging glacier throws off an avalanche of snow in Antarctica's South Georgia Island.
发生在南极洲的南乔治亚岛的雪崩，悬着的冰川直接沿山而下。
Placid ground snow awaits the crush of an avalanche descending a rock mountain face in Alaska.
阿拉斯加的岩石山上平静的积雪突然发生的雪崩。
However, the unfavorable weather and huge base of snow meant the avalanche risk was too high to try.
然而，糟糕的天气和大量堆积的雪使我们不得不放弃之前的打算。
A skier was found dead after being buried under 4m of snow for 3 hours after an avalanche at Jiangjunshan Skifield near Altay in Xinjiang Uygur Autonomous Region last Saturday, iyaxin.com reported.
据亚心网报道，19日新疆阿勒泰将军山滑雪场内发生雪崩，一名滑雪者经过近3个小时搜救后在4米多深的雪堆下被发现，已经死亡。
The simplest kind of avalanche is one of loose snow on the slope of a mountain.
最简单的山崩，是山坡上松动的雪发生崩塌。
Fresh snow can melt and re-freeze within the snow pack and it's this change of structure that can lead to an avalanche.
新下的雪可以在积雪中融化再凝固，这种结构上的变化会引起雪崩。
They're blasting away at snow in Alaska. The avalanche danger is high in Alaska's capital city after steady rains and warmer temperatures. So far there are no orders to evacuate.
在阿拉斯加，人们正在将雪块炸开，在持续的降雨以及温度回升以后，阿拉斯加首府发生雪崩的几率很大。
Snow calamity mainly consists of natural snow mantle, wind-drifting snow and avalanche.
积雪灾害主要指自然积雪、风吹雪、雪崩。
By looking at the layers of snow in their test hole, an experienced extreme skier can tell if there's likely to be an avalanche.
有经验的极速滑雪者看看测试洞里头一层层的积雪就知道会不会有雪崩。
It's believed they triggered an avalanche and were buried under the snow.
他们被认为滑雪引发了雪崩随后被埋进了雪里。
And if such a weak layer sits in the middle of the snow pack, it becomes an avalanche waiting to happen.
如果这种疏松层位于积雪的中部，雪崩便很容易被触发。
It should also help in the prediction of avalanche risk, because snow slips are often the result of dense snow falling on a less-dense underlayer.
该研究也可以帮助预测雪崩的风险，因为雪层的滑落通常是因为较密实的雪层覆盖在较松软雪层上的结果。
The rule of thumb is: A slope that is flat enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle.
常规经验是：一个平缓的足以堆积积雪，同时陡峭的适合人们滑雪的山坡，无论角度如何，都有可能产生雪崩。
A suspicious aircraft crashed into the snow mountain cause an avalanche, make this during the holiday a family buried alive in a fantastic snow.
一架可疑的飞机撞向雪山导致雪崩，令本在度假的一个家庭被活埋在雪岭上。
A suspicious aircraft crashed into the snow mountain cause an avalanche, make this during the holiday a family buried alive in a fantastic snow.
一架可疑的飞机撞向雪山导致雪崩，令本在度假的一个家庭被活埋在雪岭上。
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