variable problem造句

But the companies in our country are still confronting variable problems , such as the globalization of the market plants purchases , the changing customers " needs and the inventory problems resulted from the inexact forecast . these problems embody the obsolete method of materials management and the lower work effect
但是，国内企业的经营仍面临着多种多样的课题，例如，市场、生产点、零部件采购的全球化，客户需求的变动及其不规则性的增大以及所伴随的商品供应和生产的不平衡导致缺货或库存增大等问题。
It's difficult to find variable problem in a sentence. 用variable problem造句挺难的