[OC] 动画显示中国沿海成千上万的船只几乎在一夜之间关闭了AIS转发器

[OC] 动画显示中国沿海成千上万的船只几乎在一夜之间关闭了AIS转发器

[OC] Animation showing how thousands of boats of China's coast shut off their AIS transponder almost overnight
from /r/dataisbeautiful