It's an electric fence. Yep.

是电栅栏呦。是的。

youdao

What are you going to do, they say, put up an electric fence? Build a Berlin Wall across a continent?

要不然你想怎么做呢，他们说，难道树电网吗，或者建一堵横跨大陆的柏林墙？

youdao

The electric fence and the electric fence frame are taken as an electric fence board to connect into a needed shape by at least two electric fence board connecting pieces;

以电网和电网框为一个电网板，采用至少两个电网板用连接件连接 成需要的形状。

youdao

The Army Corps of Engineers has put an electric fence in the Chicago Sanitary and Ship Canal.

VOA: special.2009.12.15

Later, at a nearby farm, Ms. Nassauer set a round tiller blade atop an electric-fence post, so that it resembled a sunflower.

WSJ: Ki Nassauer, Envisioning Treasures From Piles of Junk | Creating

Plans are also afoot, according to Patton, to install an expensive high-tech electric perimeter fence with an intruder alarm.

BBC: The rhino wars of central Kenya