deceln.减速计Decn.十二月n.美国数字电子公司Dechlorination in aqueous system水相脱氯decelerating electrostatic field减速静电场declining-balance depreciation余额递减法decussatio nervorum trochlearium滑车神经交叉decreasing ratio of water content含水率降低率decyl methylnaphthalene sulfonate癸基甲基萘磺酸盐decanoyl/octanoyl-glycerides辛癸酸甘油酯decreasing in amount or degree.数量或程度上减少的。Decadal and interannual variation年代际变化decreasing principle of abilities递远递减法则