This is a system area. System areas cannot be deleted.

这是系统区域。系统区域不能删除。

youdao

Often a system area is too vast or intricate to express the dynamics of events and triggers.

一个系统领域常常太大或太复杂，无法表示成事件和触发器。

youdao

But let's take a closer look to the various parts in the SGA. There isn't much to say about the fixed system area.

然后让我们再仔细看看各种在SGA上的区域吧。在这里不过多涉及的那些固定的SGA区。

youdao

Later a transport system was added to permit people to visit an observation area inside the top of the arch.

VOA: special.2009.03.04

The deal is not final yet, but it calls for an Islamic system of justice for the area.

VOA: special.2009.02.21

In nineteen seventy-five, much of the Dolly Sods area became part of the National Wilderness Preservation System.

VOA: special.2009.07.20

"The Conservatives say they'll abolish this system of area assessment if they win the next election and target inspections on areas that need them, " he said.

BBC: Elderly people

The company is doing well with its immunology and oncology drugs and has showed resilience against the competition from generic drugs in central nervous system therapeutic area.

FORBES: Johnson & Johnson's Earnings Buoyed By Pharma Strength

He said the process had caused problems with fish stocks and "the whole eco-system in the area".

BBC: River Brennand