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                delta的复数形式为:deltas... 
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                n.希腊语字母表第四字母δ,(河流的)三角洲,[数]变量增量... 
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                He has been to the delta of the Nile.他曾去过尼罗河三角洲。Apex? 1 reappears to Deltan graviton telemetry 0.6 billion km from Delta.尖端1号,重新出现在距德尔塔6亿公里的地方.A Delta II rocket was launched from Cape Canaveral early this morning.今天一早,一枚... 
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                The less stable compounds were converted into a compound called Delta-A THC.不太稳定的化合物被转换成了一种叫做Delta-ATHC的化合物。A Delta II rocket was launched from Cape Canaveral early this morning.今天一早,一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。The delta regi...