In reasoning mechanism, two kinds of strategy: heuristic forward and backward reasoning method are adopted, and blackboard structure which is a common dynamic data area being applied.

在推理机构中，采用两类策略：启发式正向和反向推理方法，并利用黑板结构作为公共动态数据区。

This paper has set up a computer aided diagnostic expert system for automotive drive line by way of forward and backward combined reasoning and depth optimal theory.

本文采用正反向混合推理机制，深度优先的控制策略建立了一个基于知识的汽车传动系故障计算机辅助系统。

This model can realize forward prediction and backward reasoning, and it can decrease the development cycle of automobile. At last, validation is carried out by means of example.

该模型可实现正向预测与逆向推理功能，可缩短汽车的研发周期，并利用实例进行了说明与验证。