- 赤道几内亚 Chìdào Jǐnèiyà Equatorial Guinea
- 赤道仪 chìdàoyí equatorial mountAn equatorial mount for a telescope that compensates for Earth's rotation.
- 反赤道流 fǎnchìdàoliú equatorial countercurrent
- 天球赤道 tiānqiúchìdào celestial equator
- 赤道逆流 chìdàonìliú equatorial countercurrentequatorial counter current
- 赤道雨林 chìdàoyǔlín equatorial rainforestequatorial rain forest