# Robotic traffic police commander debuts in south China's Shenzhen

An episode of [Special English](https://invisiblenetwork.ai/podcast/825443473), 30 Mar 2026, 6:46.

Audio: https://dts.podtrac.com/redirect.mp3/radio-res.cgtn.com/ueditor/audio/2603/1074861528619.mp3

1. Robotic traffic police commander debuts in south China's Shenzhen 2. Chinese optical clock contributes to calibration of International Atomic Time 3. China unveils mass-produced high-strength carbon fiber

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