gōng / chéng / shī / zhèng / zài / cè / shì / háo / mǐ / bō / léi / dá / zài / zì / dòng / jià / shǐ / zhōng / de / xìng / néng工程师正在测试毫米波雷达在自动驾驶中的性能。Engineers are testing the performance of millimeter-wave radar in self-driving systems.