采用单因子随机分组试验方法，研究了几种不同生产厂家的添加剂预混料对育肥猪饲喂效果。
With the random single factor group division method, the effect of feed premix made by different factories on producing performance of growing pigs are studied.
LDPC码是一种可以接近香农限的线性分组码，可通过稀疏奇偶校验矩阵来构造，也可以用因子图来构成。
Low Density parity check (LDPC) codes are a kind of linear block codes approaching Shannon limit. They can be constructed either with spare parity-check matrix or with factor graphs.
给出了呼叫损失概率、分组丢失率的计算方法及容量缩放因子的求解方法。
Methods of evaluating the call blocking probabilities, cell loss probability and the capacity scaling factor were presented.
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