双语例句原声例句
-
它指出了，单位区域内源的总量。
It tells you the amount of sources per unit portion of the region.
-
因为这些星系的质量分布在更大的区域，它们每单位体积的恒星数量比传统星系要少得多。
Because these galaxies' mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies.
-
这里所谓的“空洞”不是字面上含义，并不存在任何一处平流层完全没有臭氧，科学家们用空洞这一说法来描述这些臭氧浓度低于历史读数220多布森单位的区域。
The hole isn't literal; no part of the stratosphere is empty of ozone. But scientists use the hole metaphor to describe the area where ozone drops below a historical concentration of 220 Dobson Units.
-
So the repeating unit in DNA is this structure here, a nucleotide, which has three different regions.
NA的重复单位就是,核苷酸,它有三个不同的区域
应用推荐