At the heart of the self-driving technology is robotics, and advances inrobotics could be a road to profit, observed Laura DiDio, principal analyst at ITIC.

ITIC首席分析师劳拉.迪迪奥（Laura Didio）表示，无人驾驶技术的核心是机器人技术，在机器人技术上取得进展，可能是一条实现盈利的道路。

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An ancient Roman road that was the principal artery between Rome and Cisalpine Gaul. It was begun in 220 bc by the Roman general Gaius Flaminius (died 217).

古罗马的马路，是罗马和古高卢之间的主要通道。由罗马将军盖约·弗莱明尼斯（卒于公元前217年）于公元前220年开始修建。

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A new road recognition algorithm based on local statistical features and principal component analysis is introduced to improve its robustness and adaptiveness.

为了提高道路识别算法的鲁棒性和自适应性，提出了基于局部统计特征和主元分析的道路识别算法。

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"The A465 is a crucial artery of our transport network and the principal road link between west Wales and the Midlands, " he said.

BBC: Safety hopes in ?150m Heads of the Valleys road plan

Transport Minister Carl Sargeant called it "a crucial artery of our transport network and the principal road link between west Wales and the Midlands".

BBC: ?150m A465 Heads of the Valleys road project awarded

The principal originating source is the emissions from road vehicles.

BBC: London's clue to stubborn ozone levels