diàn xìn / yùn yíng shāng / zhèng zài / pū shè / dān mó guāng xiān / yǐ / tí gāo / cháng jù lí / shù jù / chuán shū / de / wěn dìng xìng

电信运营商正在铺设单模光纤，以提高长距离数据传输的稳定性。

Telecommunications operators are laying single-mode optical fiber to improve the stability of long-distance data transmission.