jī chǎng / háng zhàn lóu / ān zhuāng / le / zǐ mǔ zhōng / xì tǒng / yǐ biàn / gè chù / xiǎn shì / tǒng yī / shí jiān

机场航站楼安装了子母钟系统，以便各处显示统一时间。

The airport terminal installed a primary and secondary clock system so that all areas could display the same time.