子午线

All places on the same meridian have the same longitude.

在午线上地方都有相经度。

Terrestrial longitude is measured in degrees east or west of the Greenwich meridian.

地球经度是用格林尼治午线东或西度数来表示。

This car is fitted with radial tyres.

这辆车配有午线轮胎。

Radials can help give a car better control.

午线轮胎有助于更好地控制汽车。

The course which will cut each meridian at the same angle is termed a rhumb line.

与每午线相交成角度叫恒线。