The U.S.’s National Highway Traffic Safety Administration paved the way for the flying car to be rolled out after recently announcing exemptions to allow it on American roads.
美国国家公路交通安全管理局（NHTSA）最近宣布，给与这种飞行汽车在美国公路行驶的权力， 此举为飞行汽车的实际应用铺平了道路。
The U. s. 's National Highway Traffic Safety Administration paved the way for the flying car to be rolled out after recently announcing exemptions to allow it on American roads.
美国国家公路交通安全管理局(NHTSA)最近宣布，给与这种飞行汽车在美国公路行驶的权力，此举为飞行汽车的实际应用铺平了道路。
In 1949, China had a highway mileage of only 80700 km, with 30000 km paved.
新中国成立初期，我国公路通车里程仅为8.07万公里，有路面里程3万公里。
Note: Paved roads include highway of urban areas.
注：铺装道路含市区公路。
This thesis describes basic types of pavement for rural highway in China: paved roads, easy road and gravel road;
本文介绍了我国农村公路路面的基本类型：铺装路面、简易铺装路面以及砂石路面；
This thesis describes basic types of pavement for rural highway in China: paved roads, easy road and gravel road;
本文介绍了我国农村公路路面的基本类型：铺装路面、简易铺装路面以及砂石路面；
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