So if a scientist wanted to study the microorganisms living on each side of a temperature gradient, the AUV would find the boundary, follow it, and pick the best spot to take samples.
因此，当一位科学家有兴趣研究生活在海平面下某一温度层边缘的微生物，这台水下自动探测机器人能够找到温度梯度的边界，并在那里找到最佳样本。
So he spent most of his time collecting mineral samples from the western boundary line of the new frontier.
所以他大部分时间都在新矿带的西边界采集矿物标本。
Results show that the contents of intergranular oxygen and total grain boundary phase as well as the density of sintered samples have maximum values with increasing the holding time.
研究发现，由于晶界相中的氧含量随保温时间的延长先增加然后明显降低，导致烧结体中晶界相的总量和致密化程度随保温时间的增加有一最大值。
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