The IBIS model is used to help get exact information in the integrity constraint design of system board level or multiple board level signals for analysis and calculation.
IBIS模型可以帮助设计者在系统板级或多板信号完整性约束的设计中获取准确的信息，以进行分析和计算。
A new method for reliability analysis and calculation of the gray maintainable system is put forward using the gray theory under the condition of lacking information from its practical state.
从灰色可维修系统实际工作状态出发，在缺乏信息的条件下，运用灰色理论，提出其可靠性的分析计算新方法。
Through a case study in Licounty, arable land grading information system can automatically complete information input., data analysis... land grading index calculation and divide land gradation.
通过对蠡县农用土地分等信息系统建立的实证研究，利用计算机自动完成分等信息的输入、数据分析、土地等指数计算、等别划分等工作。
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