The filament near the flare became active long before the start of the flare.

在耀斑开始很早以前，耀斑附近的暗条就变得活动起来。

youdao

The filament near the flare became active long before the start of the flare.

在耀斑开始很早以前，耀斑附近的暗条就变得活动起来。

youdao