export ratio造句

• Our empirical study also shows that prospects for future earnings , the export ratio , domestic competition , firm size , and the labor costs ratio are the most important factors affecting firms ' investment decisions
  由企业的投资决策模型可看出，企业国内外投资决策受到对未来工农业民房、外销比率、国内市场竞争程度、企业规模、人事成本比重等因素的影响。