经线

jīng xiàn bèi yòng lái zhī jǐn

经线被用来织锦。

The warp is used for weaving tapestry.

zhè tiáo jīng xiàn chuān guo cóng lín dì dài

这条经线穿过丛林地带。

This line of longitude cuts through the jungle.

tā men yī jiù zài tóng yī tiáo jīng xiàn shang fēi xíng

他们依旧在同一条经线上飞行。

They were still travelling along the same line of longitude.