active region

基本解释

The Pacific Ring of Fire is the most geologically active region of Earth.
环太平洋地地震带是地球上地质活动最频繁的地区。
Flag to disable rendering in AJAX responses content outside of active region.
禁止在活动区域以外的 AJAX 响应内容中呈现的标志。
Spicules line the above frame of solar active region 11092 that crossed the Sun last month, but are particularly evident converging on the sunspot on the lower left.
这些针状体在上个月穿过太阳的太阳活跃区域 11092 号中形成一条条线，不过聚集在左下角太阳黑子上的针状体特别的明显。

Where the U.K.has done it, given active support to it, if Australia wants to position itself as a financial services hub for the Asia-Pacific region, it has to,in my view, embrace Islamic financing too."

The channels remained hidden because the once volcanically active region had been filled in by lava flows hundreds of millions years ago.
NPR: Radar Reveals Apparent Buried Channels On Mars
For example, the magnitude of the loss of life caused by the recent earthquake in Armenia was in large measure attributable to the fact that civilian construction in the USSR is systematically denied the steel prudent building techniques require in such a seismically active region.
CENTERFORSECURITYPOLICY: US-Soviet Relations
But Muslim fundamentalists under the banner of Salafism are certainly becoming more active in the region.
ECONOMIST: Africa and the “war on terror”