运转区 maneuvering area ; area operations

粒子数反转区 popular inversion area ; area of popular inversion

安全运转区域 safe operating area

反转区 inverted region ; inversion region

黑坯周转区 Raw Material Block

左转待转区 Left turn waiting zone

产业转移示范区 demonstration zones for accepting relocated industries ; industrial relocation demonstration zone

旋转区 rolling zone ; rotation zone