1.Based on the sortfeature of derived CAPP expert system, this paper discusses the basis concept, importance, key steps and realizing of ISODATAand focuses on the criterion and rule of clustering.
2.The analytical results indicate that the standard absorption moisture possesses the better sortfeature,but the classification grade is obviously higher according to the above specification,and the free swelling ratio of expansive soil in the middle area of Anhui Province is lower.
4.According to the feature of the driving force scattered EMU brake system? the article brings forward a sort of design of the 160 km ／ h driving force scattered EMU brake system? which uses the ability of its driving force brake to reduce the run cost and brake noise．
根据动力分散快速电动车组制动系统的特点,提出一套160 km ／ h动力分散电动车组制动系统的方案,充分利用了其动力制动能力,减少了列车运营成本和列车制动时的噪音.收藏指正
