closed fit 紧配合
The research implies that the effect is better when the wind machine is open than when is closed, and the velocity in the layer of electricity is fit for requests and its distribution is equal.
试验研究表明：埋管风机和接力风机开启的效果优于关闭时，发电机层风速分布满足要求且分布均匀。
The algorithm has more advancements than the method of fitting the curves of explicit functions by BP network, which can not fit the closed curves.
该新方法不同于传统的对显式函数的逼近方法，因为传统方法无法描述封闭的曲线；
Gas gun adopts stainless steel full closed structure, fit for long-term application under worse weather conditions, and convenient for installation and maintenance.
煤气炮采用不锈钢全密封式结构，适合在恶劣气象条件下长期使用，安装和维护都十分方便。
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