One of the most important content within it is management to indetermination in the future, which is caused mostly by change in inside and outside environment.

• 这种不确定性很大程度上是内外环境的变化引起的。上海电力燃料有限公司长期以来从事电厂燃料(主要指煤炭)的采购和水上运输业务。