介绍了我国地铁信号设备研制现状和上海、北京、广州地铁引进国外地铁信号设备的情况。

The present situation for the research of metro signaling equipment in China and the imported metro signaling equipment for metres in Shanghai, Beijing and Guangzhou are introduced.

youdao

我们周围的每个人似乎都认可，即使在地铁上没有信号，他们也会紧握手机不放。

Everyone around us seems to agree by the way they cling to their phones, even without a signal on a subway.

youdao

上海申通地铁有限公司董事长俞光耀在昨晚的一长新闻发布会上称，发生故障的系统是由卡斯柯信号有限公司制造的。

The system that had the fault was made by Casco Signal Ltd., Shanghai Shentong Metro Co. Chairman Yu Guangyao said at a press conference yesterday evening.

youdao

It can be very stressful especially because we don't get cell phone reception down there.

这可以使人很紧张，尤其是因为在地铁站我们的手机没信号。

纽约的交通手段 - SpeakingMax英语口语达人