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yxkd
- 用于计算公路桥梁有效宽度，非常方便。20字太多啦-Roads and bridges used to calculate the effective width, very convenient. 20 words too many
qixiuguanlixitong
- 这是汽车修理管理系统，大家有兴趣的可以看看，交流交流啦！-This is a car repair management system, we are interested can see, the exchange of exchange !