为加快速度，一定要确保将封口塑料袋放在你行李里面方便拿取的位置，这样就可以很快拿出来放在安检盒里通过检测。
To speed things along, make sure to stash your zip-top plastic bag in an accessible place so you can easily take it out of your baggage and put it in a bin during screening.
在触觉、力觉交互的虚拟现实系统中，快速计算虚拟物体之间精确接触位置是触觉、力觉交互碰撞检测系统的前提。
In the virtual reality interactive system of the force-feedback or touch-feedback, fast calculating exact contacted position among virtual objects is precondition of these collision detection systems.
应用改进后的基于一阶微分期望值的亚像素边缘检测算法，可以快速、精确地检测到边缘的位置。
Using improved sub-pixel edge detecting algorithm based on the expectation of first-order derivatives, we can fast and precisely detect the edge position.
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