跨洋海底光缆传输系统的生产、维护和运行是一个世界性难题。

Trans-Pacific submarine cable transmission system of production, maintenance and operation of a worldwide problem.

youdao

跨洋海底光缆传输系统的生产、维护和运行是一个世界性难题。

Trans-Pacific submarine cable transmission system of production, maintenance and operation of a worldwide problem.

youdao