In addition, basic industries are the key of economic forces, because the expansion of basic industries provides non-basic industries a growth footstall, and push the overall growth of employment.

• 2、经济基础产业的确是一个区域经济力量的关键，因为基础产业活动的扩张会对非基础产业提供一个成长基石，进而带动地区内整体就业的成长。