Concentrations of positively charged particles develop at the top and bottom of the cloud, but the middle region becomes negatively charged.
带正电荷的粒子集中在云团的顶部和底部，但中间区域形成的是带负电荷的粒子。
Ozone bacteria control on both top and bottom tanks.
运用臭氧来控制上水箱和下水箱细菌。
Top and bottom sizes can be mixed and matched, and many are adjustable.
上装与下装的各种尺寸可以混合搭配，而且许多是可以调节的。
Fold your top and bottom finished edges down where they loosely cover the skewers.
把顶端和底部包好边的布折起，盖住叉子。
Circles are drawn in top and bottom halves, from largest diameter to smallest.
圆形按直径从最大到最小绘制在上半部和下半部。
So that covers the top and bottom rows of the grid, but what about the middle row?
了解顶部行和底部行之后，那么什么是中间行呢？
If not, a specially designed tool will be used to pry apart the top and bottom flanges.
如果螺栓无法拆卸，将使用一种专门设计的工具把上下法兰盘撬开。
Double top and bottom does not need any introduction as it speaks in any timeframe.
双头和双底并不需要任何介绍因为它在任何周期都存在。
The textured top and bottom keep it from sliding, so your projects stay where you want them.
特定结构的顶和底可以防滑，这样垫着的东西就会老老实实待在原地了。
The following example shows how to create a canvas in a frame with labels at the top and bottom.
下面的例子展示了如何在上下端有标签的帧中创建画布。
This indicated a much sharper disparity between the top and bottom than existed two decades ago.
这表明社会上层与底层之间的差距比20年前更为显著。
This is not ideal for watching widescreen movies: you get a thick black "letterbox" bar top and bottom.
用这个屏幕看宽银幕电影可不怎么样：你会在电影上下各得到一条黑黑的粗条。
Humans are wired to calculate the distance of an object by using the vertical Angle between its top and bottom.
人类通常是通过一个物体上下间的的垂直角度来计算与它相隔的距离。
His silhouette showed a top hat, a coat which fanned out at the top and bottom and he appeared rather tall.
他看上去身材高大，戴着一顶尖尖的帽子，身上的大衣从领口到下摆像一个扇面一样伸展开来。
The cosmic microwave background is apparent as the grainy structure towards the top and bottom of the image.
在图像顶部和底部的颗粒状结构就是宇宙背景微波。
Do not let them touch each other. Be sure that air can reach the fish from all sides, including the top and bottom.
不要让它们相互接触，保证鱼的四周通风，包括上部和底部。
Readjust the top and bottom guidelines so that they are once again snap to the top and bottom of the background image.
重新调整顶部和底部的参考线，直到它们再一次吸附到背景图片的顶端和底端。
In the case of a plane, it's the difference in pressure on the top and bottom of its wings that keeps the craft afloat.
以飞机为例，它双翼上方与下方的压力各不相同，正是这不同的压力使得飞行器保持悬浮。
And, why that makes it very interesting on the top and bottom, that means that on the sides, really not much is going on.
顶部和底部之所以看上去有趣点，是因为不论是否从侧面穿过。
One trend that is all but universally accepted is the widening wealth disparity between those at the very top and bottom.
其中一个全地球人都知道的趋势就是贫富之间的差距在变大。
Each Glue1D consists of a grow weight value and two springs, left and right or top and bottom, depending on the dimension.
每个Glue1D由一个growweight值和两个spring组成，取决于不同的维，这两个spring可以是left和right或top和bottom。
We also found on the back cover, by combining words at the top and bottom, a small but important reference to the hermetic adage
我们在封底也发现，把顶端和底部的单词结合起来，是一个小而重要的参考，提到了封闭的古谚。
However, a vertical line sitting perpendicular to the top and bottom of the canvas has more of a tendency to convey a sense of height.
然而，与画布顶端和底端垂直的竖线往往更适于传递高度之感。
This article is going to focus more on the top and bottom left parts of this figure, providing more details on the artifacts shown there.
本文将更加着重于此图的上面和左下部分的内容，并提供那个位置所显示工件的更加详细的信息。
We also see content elements located at the top and bottom of the layout shifted (translated) horizontally across the page for further symmetry.
页面顶部和底部的元素布局呈水平变换，达到了更深层次的对称的效果。
Given a dimension, you have three wGrow values to consider: two of the sides (left and right, or top and bottom) and the child's value itself.
对于一个给定的维，有3个wgrow值要考虑：两个边(左和右，或者上和下)和child值本身。
Beyond the 600-denier ballistic-polyester shell and foam-reinforced rails, air columns lining the top and bottom help disperse force on impact.
它所配备的600纤度以上弹道聚酯外壳、泡沫加固横杆以及双面覆盖的充气条均有助于分散碰撞的冲击力，贴心呵护您心爱的冲浪板。
Models predicted that electrical charge should be limited to the top and bottom of any ash plume, which is often the site of spectacular lightning.
根据以前的模型，电荷仅存在于火山灰羽状物的顶部和低端，那里时常发生华丽的闪电。
We are going to mask out the top and bottom of the planet to make it look like it is fading into the darkness at the top and into the light at the bottom.
我们将要把行星的顶部和底部遮住，以使它的顶部看起来渐隐于黑暗中，底部渐隐于高光中。
We are going to mask out the top and bottom of the planet to make it look like it is fading into the darkness at the top and into the light at the bottom.
我们将要把行星的顶部和底部遮住，以使它的顶部看起来渐隐于黑暗中，底部渐隐于高光中。
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