此比率自然對數(shù)稱為對數(shù)的減量.The natural logarithm of this ratio is called the logarithmic decrement.例如, 所在地可以儲存廠家轉(zhuǎn)產(chǎn)所引起的排放削減量.For example, localities may bank reductions which result from firms going out of business.方法: 給30例皮質(zhì)激素減量困難的尋...