Iran is the fulcrum of an unstable region.

伊朗是这块动荡区域的杠杆支点。

Besides, there exists another unstable region above the stable region.

此外，在上稳定区的上方还存在有第二失稳区。

There is always an unstable region or break in the static pressure curve of a propeller fan.

在螺旋桨式风机的静压曲线中存在着不稳定区域或断点。

For in our unstable region, no one can guarantee that our peace partners today will be there tomorrow.

在我们的不稳定地区，没有人能够保证我们今天的和平伙伴明天还是和平的。

Once hailed as an anchor of stability in an unstable region, Museveni received harsh criticism and calls for an end to his quarter-century rule.

穆塞韦尼曾经被高度赞扬为一个能够在动荡地区稳定局势的人物，但他现在却受到激烈批评，人们要求穆塞韦尼结束他25年的统治。