根据冰川上的压力，其中的冰晶会重新组织。
Depending on the stresses on the glacier, the ice crystal within it reorganized.
科学家们还不清楚这个过程是如何阻止冰晶形成的。
Scientists do not know exactly how this process prevents ice crystal formation.
然后上升气流将轻盈的、带正电荷的冰晶带到云的顶部。
Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud.
当这些冰粒下落时，其中一些会撞到云团中心的更小的冰晶。
When these ice pellets fall, some of them strike much smaller ice crystals in the center of the cloud.
在这个重组的过程中，冰晶会重新排列成允许它们相互移动的形式。
During this re-organization, the ice crystals realign in a way that allows them to slide pass each other.
三天过去了，我惊讶地再次看到：所有的开口都是用细细的白线缝起来的，看上去就像北方冬天树枝上的冰晶。
Three days went past, and I was surprised to see it again: all the openings were sewed up by thin and white thread and they looked like the ice crystal on winter's branches in the north.
她和真正的冰晶待在一起。
你可以看见另一冰晶体光的现象图片，太阳狗。
You can see a picture of another ice-crystal light phenomenon, a sun dog.
它们通常由冰晶组成并且不产生雨。
最后形成像这样的冰晶云。
对冰晶的研究可以得到很多信息。
Studying individual ice crystals can yield all sorts of information.
雪花和结霜表面的冰晶会形成重复图案。
Crystallizing water forms repeating patterns in snowflakes and on frosty surfaces.
但是这种向下倒的彩虹，却是由空气中的冰晶所引起。
The upside down kind however, are caused by ice crystals in the air.
这种光晕是由于阳光穿过高空薄云蕴含的冰晶而形成的。
This kind of halo can form by sunlight passing through ice crystals in thin layers of high clouds.
更多的水汽形成更大冰晶颗粒，进而产生更大的反射效果。
Increased water vapor also leads to the formation of larger ice particles that reflect more light.
云层中的冰晶体数量会倍增，不久整块云层都会成为冰层。
All over the cloud, the number of ice crystals multiplies - and soon the whole cloud might be ice.
美国航天局说，在地球上稀疏的白色卷云是由冰晶所组成的。
On Earth, NASA says, white wispy cirrus clouds are made of ice crystals.
冰晶需呈片状，它们悬浮近在地面的空中，将光线向下反射。
Ice crystals should be plate shaped. They float in the air close to the ground reflecting light back downwards.
当风将含有冰晶的云朵吹成长长的细丝状时，毛状云便形成了。
When the wind draws ice-crystal clouds into long, fine filaments, they are called fibratus.
观察者在接近日出或日落的时候可以与这些冰晶穿过同一个平面。
An observer may pass through the same plane as many of the falling ice crystals near sunrise or sunset.
低温让更多水汽凝结，同时水汽的增加又能够形成更多的冰晶云。
Colder temperatures allow more water to freeze, while an increase in water vapor allows more ice clouds to form.
冰晶必须面向水平，而观察者的视线也必须接近水平来观察幻日。
The ice crystals must be oriented horizontally and the observer's line of sight must be close to horizontal to see the sundogs.
这些冰晶缓缓地飘向地面，大多数时候是面向地面并与地面平行的。
As these crystals flutter to the ground, much time is spent with their faces flat, parallel to the ground.
通过水蒸汽的吸收和表面小水滴的附着，冰晶会逐渐变大。
The crystal grows by continuing to collect water vapor, and by the attachment of water droplets to its surface.
幻日是阳光通过云层中微小冰晶的折射而造成的另一种大气光学现象。
A sundog is another atmospheric optical phenomenon caused by the refraction of sunlight by tiny ice crystals in clouds.
当水在上层大气中凝固，会形成细微的，扁平的，六面体形状的冰晶。
As water freezes in the upper atmosphere, small, flat, six-sided, ice crystals might be formed.
太阳光环也是由微小、扁平、六面形的冰晶在同地面平行地飘落所引起的。
Solar halos are also caused by small, flat, six-sided, ice crystals that float down parallel to the ground.
垂直的光柱通常是由高空云层里的冰晶掉到寒冷空气中所造成的。
These vertical beams of light are usually created in cold air by ice crystals falling from high clouds.
NASA将一枚空岩助推器撞向月球，以探测在月球南极是否存在水冰晶体。
NASA crashed an empty rock booster into the moon to see if water-ice crystals were at the South Pole.
而这个罕见现象是由于在位置较高卷云中的冰晶反射闪电而产生的。
The rare phenomenon is created by light reflected from ice crystals in high-up cirrus clouds.
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