舒适区comfort zone
地震带seismic belt; seismic zone; earthquake zone
经济技术开发区economic and technological development zone
专属经济区exclusive economic zone
后方地带zone of interior【军】
山岳地带mountain zone; mountain region
瓦尔萨尔瓦氏区Valsalva zone
饱和带，饱和区saturated zone