This knowledge is used to ensure that the creation and modification of instance data conforms to the structure and type rules for the data object.
该知识用于确保对实例数据的创建和修改符合数据对象的结构和类型规则。
If new information should require modification of the Big Bang theory, that modification could be accomplished without the entire temple of knowledge collapsing.
如果获得了新的信息需要修正大爆炸理论，完成这种修正并不会使整个知识殿堂倒塌。
It is an open system which may be broadened and perfected to cover a wider range of engineering applications through the modification and enlargement of the knowledge and data bases.
这是一个开放系统，通过对知识库、数据库的不断修改和补充，可使系统继续扩充和完善以用于更广泛的工程构件设计中。
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