You can talk fairly rapidly for information that may be familiar, but then slow down for more unfamiliar sections.
对于熟悉的信息,你可以说得很快,但对于不熟悉的部分就慢下来了。
And even that number is likely to drop fairly rapidly.
即使是这一数字也在快速地下降。
Time - fallout radiation loses its intensity fairly rapidly.
时间——放射性尘降物的辐射强度衰减很快。
Movement down a concentration gradient occurs fairly rapidly over short distances like a micron or so, like the size of a bacterium.
顺浓度梯度扩散在一微米左右的短距离内,相当迅速,一微米相当于一个细菌的大小
It's totally synthetic, there's no micro-organism involved in making the DNA for you, You can do it very rapidly in a laboratory, and fairly inexpensively now.
完全是复制的过程,没有任何微生物参与制造DNA,你可以在实验室里迅速地进行,费用现在也相当便宜了
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