这些货物不是医药或者紧急物资，但是速度同样至关重要：输送的货品乃是尖端时尚服装，在世界各地大受追捧。
These are not shipments of medicines or emergency rations, but speed is just as vital: the goods are clothes of the latest fashion, in hot demand everywhere.
尖端曲率半径、针尖在基底表面滞留时间、针尖扫描速度、空气湿度、表面粗糙度等均会影响纳米结构的线宽。
The line width of nanostructures is influenced by many factors such as tip curvature radius, detained time in the base surface, scanning speed, humidity, surface roughness etc.
研究表明：介质内的耦合场与裂纹运动速度有关，在裂纹尖端有奇异；
The study shows that the coupled elastic and electric fields inside piezoelectric med ia depend on the speed of the crack propagation, and have singularity at the cr ack tip.
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