What does it mean that the coconut wind blows the blue sea and arrows into the sky?

This means that the rocket is in a place with coconuts, that is, Hainan space, and can't be launched.

On May 5, 2020 18, the Long March V-B carrier rocket, known as the "Excalibur", made its first flight to the sky at Wenchang Space Launch Site in Hainan Province, swept across the blue sea with a breeze and rushed into space, successfully docking.

Coconut wind is the wind blowing under coconut trees. Blue sea is the name of the sea, and nine represents the sky.