下层

Tropical forest is wetter and usually supports only knee-high fires that spread slowly through the understorey.

但是热带森林相比而言更加潮湿，一般情况下火势只延伸到人膝盖的高度，并且在下层木之间蔓延。

Tropical forest is wetter and usually supports only knee-high fires that spread slowly through the understorey.

热带森林因湿度较高，因此火焰只能烧至膝盖高度并且通常在森林的下层缓慢蔓延。

The continuity of the arboreal mass (which contains animal habitats and migration corridors, playing primary role in the establishment of the atmospheric conditions that permit the life forms found in the association with the trees; also contributing to the mechanical reinforcement of the understorey).

树栖的大规模的连续性（其中包含动物的栖息地和迁徙通道，发挥在大气主要作用创造条件允许的生命形式在与树木协会发现，也有助于加强对下层机械）。

There's been ... restructuring of industry and downward mobility for Americans as a whole.

曾有…工业的调整时期，总体而言当时的美国人向下层社会阶层流动。

There was downward mobility for Americans as a whole during the Great Depression.

在大萧条时期，美国人总的来说向下层社会阶层流动。

"There's been ... restructuring of industry and downward mobility for Americans as a whole"Lawrence W.

&曾有…工业的调整时期，总体而言当时的美国人向下层社会阶层流动&劳伦斯W。

First,the 3-d dynamic equations in cylindrical coordinate for transversely isotropic saturated soil were transformed into a group of governing differential equations with 1-order by the technique of Fourier expanding with respect to azimuth,and the state equation was established by Hankel integral transform method,furthermore the transfer matrixes within layered media were deriv...

首先，通过方位角的Fourier变换，将圆柱坐标系下横观各向同性饱和土的三维动力方程转化为一阶常微分方程组，基于径向Hankel变换，建立问题的状态方程，求解状态方程后得到传递矩阵；其次，利用传递矩阵，结合层状饱和地基的边界条件、排水条件及层间接触和连续条件，给出了任意简谐激振力作用下层状横观各向同性饱和地基动力响应的通解；然后，按混合边值问题建立层状饱和地基上弹性圆板非轴对称振动的对偶积分方程，并将对偶积分方程化为易于数值计算的第二类Fredholm积分方程，并给出了算例。

When the bottles were empty, however, he rose to go and tell his master of the change in the time of the sailing of the 'Carnatic'.

吸鸦片的恶习从富有阶级——鸦片首先是专给他们享用的——一直蔓延到了下层阶级，这种灾祸就再也无法禁止了。

Furthermore, in order to increase the flexibility and adaptability of command spaces, the USN and Northrop Grumman Newport News have developed a 'flex deck' architecture that allows below-deck command spaces and planning rooms to be rapidly reconfigured.

此外，为了增加指挥间的灵活性与适应能力，美国海军和诺斯罗普·格鲁曼公司纽波特纽斯船厂发明了一套&灵活甲板&的体系结构允许对指挥间和计划室的下层甲板进行快速的重新配置。

Gaston Monescu: I see. You have to be in the Social Register to keep out of jail. But when a man starts at the bottom and works his way up, a self-made crook, then you say,"Call the police! Put him behind bars! Lock him up!"

我明白了，你一旦进入社交名人录就可以免受牢狱之苦，但是一旦一个人从下层做起，是个自力更生的盗贼，你就会说：&快报警，把他抓起来。&

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失