从前没有人记录过这种海洋哺乳动物的学习行为短时间内在种群中扩散的现象。
No one has ever before documented the spread of a learned behavior through a population of these Marine mammals over a short period of time.
这种短时间内的金融危机扩散，我们称之为危机传染。
The proliferation in short times is what we called crisis contagion.
激光在空间传播时不会扩散，而且能短时间集中能量。
Laser in space will not spread proliferation, but also be able to focus on short-term energy.
且从短时间的结果显示，兩层交换位置的扩散机制是：在Au5Sn中，Sn是主要的扩散元素。
From the result of short time reaction, the diffusion mechanism for the exchange of AuSn and Au5Sn is the diffusion of Sn through Au5Sn.
且从短时间的结果显示，兩层交换位置的扩散机制是：在Au5Sn中，Sn是主要的扩散元素。
From the result of short time reaction, the diffusion mechanism for the exchange of AuSn and Au5Sn is the diffusion of Sn through Au5Sn.
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