1) two wave approximation
双波近似
2) two shock approximation
双激波近似
3) Bidirectional Approximation
双向近似
1.
Based on dynamic granulation principle,the concept of bidirectional
approximation is proposed,some important properties are obtained.
基于动态粒度原理,提出双向近似的概念,获得双向近似的一些重要性质,并将其应用于决策表中决策规则的获取。
4) bicrystal approximation
双晶近似
5) double-PN approximation
双PN近似
6) two beam approximation
双束近似
补充资料：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
CCAASS?：38051-10-4
?分?子?式?：C13H24Cl6O8P2
?中?文?名?称?：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
?英?文?名?称?：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate