DDB是什么意思
网络释义：双倍余额递减法函数；分布式数据库；恒美广告；恒美
1 . Firstly, it describes methods of DDB and DIB bitmap displaying.
首先介绍DDB、DIB位图的显示方法.
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2 . In this thesis, the synthesis routes of α - DDB and � � - DDB were optimized.
本文对α-DDB和β-DDB的合成路线进行了改进.
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3 . Some basic concepts of Device Dependent Bitmap ( DDB ) and Device Independent Bitmap ( DIB ) are introduced.
介绍了设备相关位图 ( DDB) 、设备无关位图 ( DIB ) 的基本概念.
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4 . DDB was also found to inhibit topoisomerase II activity of Bel - 74 02 hepatocarcinomacells.
此外,DDB还能降低从Bel - 7402细胞内提取出的DNA拓扑 异构酶II(ToPoII)活力.
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5 . Dimethyl 4,4'- dimethoxy - 5,6, 5 ', 6'- dimethylenedioxybiphenyl - 2,2'- dicarboxylate ( α - DDB ) and bicyclol exhibIt'significant antiheptotoxic activities and effectively lower the serum - transaminase level.
4,4’ - 二甲氧基-5,6, 5 ’, 6 ’ - 二次甲二氧基-2,2 ’ - 二甲氧羰基联苯 ( α-DDB) 和双环醇具有明显的抗肝毒活性,能显著降低血清转氨酶水平.
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