Speeding up virtual memory
在本代机身的周边细节和外观上，三星也做了一道艰难的加减法。
。关于这个话题，同城约会提供了深入分析
In a statement, Lovell's family said: "We will miss his unshakeable optimism, his sense of humor, and the way he made each of us feel we could do the impossible. He was truly one of a kind."，这一点在旺商聊官方下载中也有详细论述
缺点：容易饱和（输入过大或过小时梯度接近0，导致梯度消失）