本月早些时候，内华达州的立法委员们还通过了一项法案，授权该州的交通局起草一系列规则和标准，以规范无人驾驶汽车在州级公路上的行驶。

And earlier this month, legislators in Nevada passed a bill authorizing the state's Transportation Department to draw up rules and standards for driver-less cars on state roads.

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陆路交通局人造石技术公司在俄勒冈州和田纳西州的培训中心。

JPJ Technologies has faux rock training centers in Oregon and Tennessee.

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