Thin wooden slats are attached to the membrane to form the running surface of the roll.

薄薄的木质板附着在这层透明膜上，便是圆筒的间隔层。

youdao

The connection can be made by using the running surface of the paved cart as the horizontal datum.

连接时可以利用已铺好的大车运行轨道面作为水平基准。

youdao

Consistency is important, too, because a sudden change to a new running surface can cause injuries.

道路状况的一致性也比较重要，突然转换到不同路面有可能导致受伤。

youdao

He knelt down and crawled from the switch rails to the frog of the crossover, sliding his hand along the running surface and the head of the rail and feeling for possible corrugations or dents, or burrs shaved off by the wheels of the locomotives.

NEWYORKER: Among Animals and Plants

And the technology running below the surface, allowing BioWare to bring this epic story to life, is Unreal Engine 3.

FORBES: Connect

The trainees discovered the advantages of levelling the steep slopes into horizontall terraces, in order for the rain to penetrate the hillside rather than running off the surface.

UNESCO: Ecological Sciences for Sustainable Development