挖掘器

Decision tree is an important method in induction as well as in data mining, which can be used to from classification and predictive model.

决策树是归纳学习和数据挖掘的重要方法，通常用来形成分类器和预测模型。

When vector sensor processing techniques have shown many advantages than pressure after more than ten years of rapid development, it is necessary to do more fundermental researches on physics and signal theory to explore the potential of vector hydrophone more specifically and effectively.

矢量水听器信号处理技术经过十几年快速发展，展示出相比于声压信号处理技术的优点后，它在物理和信号理论方面需要更深入的基础研究，以更明确、更好地挖掘其内在的潜力。

In the related researches of highway service level and travel time estimation, which have been mainly focused on how to spread out the Vehicle Detectors in order to detect the velocity of the vehicles. Spreading the Vehicle Detectors, which is difficult to execute, consists of the following procedures : road digging, VDs spreading, and road reconstruction. Moreover, the as mentioned procedures could damage the backtops. To apply the procedures in downtown area is even more laborious, due to the limited resource and controls from local authorities. As a consequence, the unsufficient density and numbers of VDs could not well serve the information collecting standards.

目前道路服务水准评估、旅行时间预估等相关研究，在行车速率推估上多以路面上布设之车辆侦测器所搜集之资讯为主，但VD之埋设需经路面挖掘、VD布设、重铺柏油等程序，布设不容易且损坏率偏高，亦普遍存在维护困难的问题；尽管已有诸多研究开始利用AVI、资料融合、RFID等技术，增进以VD为交通资讯搜集主要来源之研究成果，但仍多因资讯搜集成本较高，无法进行全面性应用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失