The increase in the prevalence of autism is probably due to better recognitionof the condition by both parents and doctors, wider diagnostic criteria and more diagnostic services.
孤独症发病率的上升可能要归于家长和医生辨识能力的提高，诊断标准的放宽，和诊断服务更为普遍等因素。
2
By recognitionof work condition, off-line identification and on-line optimization of parameters, hybrid model can be used to simulate dynamics of complex process correctly in a large scale.
The extraction of effective feature vector and pattern recognition is the key technique in the process of mechanical condition monitoring and diagnosis.