GZK intelligent obstacle lights on the control box, GZ series is long-life aviation obstacle lights matching products.

GZK型智能障碍灯集中控制箱，是GZ系列长寿命航空障碍灯的配套产品。

youdao

Ergo, if our universe is just a simulation, there should be a cut off in the spectrum of high energy particles, and low and behold, there is -- the Greisen-Zatsepin-Kuzmin or GZK cut off.

ENGADGET: Alt-week 10.13.12: is the Universe a simulation, cloning dinosaurs and singing mice