树木年轮的碳同位素和冰核中钚同位素的检测都显示出在上述阶段的大多数时间内太阳辐射能量出现下降。
Isotopes of carbon in tree rings and beryllium in ice cores show a drop-off in solar radiation during much of the period.
这种矩形机器人，看上去有点像缩小版的太阳能汽车。它装备着高分辨率的摄像机和传感器，能探测到长的过分高大的树木。
The rectangular robot--looking a bit like a scaled down version of a solar car--is equipped with a high-definition camera and sensors that can detect overgrown trees.
虽然太阳活动降低了，但是我们燃烧化石燃料和砍伐树木引起了CO2的快速升高。
This small weakening of the sun, however, has been outpaced by the rapid increase in CO2 levels from all our fossil fuel burning and tree-cutting.
我就想起了太阳、大地、山川和树木。
森林中的树木同其它树木和植物为获得太阳光不断地进行着竞争。甚至是同一棵树的枝叶间也在为太阳光竞争着。
Trees in a forest are competing with other trees and plants for sunlight, and even each branch and leaf on a tree are competing with each other for sunlight.
显示了林窗边缘壁面的热力效应除与太阳高度角、太阳辐射的时间长短和强度有关之外，林窗边缘树木高度也是不可忽视的因子。
This indicates that, besides solar angle, time and intensity of radiation, the height of trees is also an important factor that influences thermal effects of vertical thermal active surface of edges.
我们燃烧树木时，所取回的能量绝不会比它生长着的叶子从太阳光中所吸收和贮存的能量多。
When we burn the tree we can never get back more energy than its growing leaves had received and stored up from the solar rays.
树木不仅为人们提供的视觉和情感上的影响，还能遮挡太阳辐射。
Not only do the trees provide the visual and emotional impact to the human beings but also drop the shadows on the building in order to block the solar radiation.
看来宇宙中大多数物质的本质与构成你、我、岩石、树木、地球和太阳的东西都不一样。
It seems that the very essence of most ot the matter in the universe is different from what you and I and rocks and trees and Earth and the Sun are made of.
太阳很明亮，他发出来的光能让我们看到东西，而且让我们绿色的草和树木生长。
The SunThe sun is very bright. light from the sun helps us see things. Its light also makes our green grass and trees grow.
太阳很明亮，他发出来的光能让我们看到东西，而且让我们绿色的草和树木生长。
The SunThe sun is very bright. light from the sun helps us see things. Its light also makes our green grass and trees grow.
应用推荐