基重是指一个指明尺寸的纸张的一令（500张），以英镑为单位所得的重量（g/m2 每米平方的克重），它的计算方法是将纸张裁剪成1公尺*1公尺，再称它的重量。
研制了一种钇基重稀土变质剂。
A new type of Y-base heavy rare earth modificator was developed.
为了使抄纸过程的输出(湿度和基重)最大限度地接近给定值，采用BP神经网络PID控制。
In order for the output (humidity and base weight) in the copy paper process to approximate the given value as much as possible, PID controller of BP nerve network is used.
应用钇基重稀土镁复合球化剂，铸造厚大断面高韧性球铁冷却壁，成功地获得了铸件中心部位铸态高性能。
The RE(Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings.
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