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1)  multinomial tree
多元树
1.
This paper concerns with multinomial tree methods, whose algorithm and structure are discussed, we find out two new pentanomial tree models and one heptanomial tree model, the convergent order of multinomial methods is higher than that of binomial tree method, however, unsmooth payoff functions may reduce the efficiency of computation.
本文的主题是多元树形结构法,文中对其算法及构造进行了讨论,同时,还找出了二个新的五元树形结构模型和一个七元树形结构模型。
2)  Polyprotonic copolymerization resin
多元共聚树脂
3)  Polyphenols-formaldehyde resin
多元酚-甲醛树脂
1.
Polyphenols-formaldehyde resin, a new thermosetting adhesive, is developed by Guizhou Research institute of Chemical industry, its analytical method for free phenol and aldehyde is discussed in the article.
多元酚──甲醛树脂是本院开发的热固型粘接剂新产品,本文给出了这一产品技术指标中游离酚、游离醛含量的测定方法,并对方法进行了讨论。
4)  Organosilicon polyol resin
有机硅多元醇树脂
5)  epoxy resin adduct polyol
环氧树脂加成多元醇
1.
A new kind of epoxy resin adduct polyol(EAP) with rigid backbone was synthesized by the reaction of bisphenol- A type epoxy resin with acetic acid and characterized with FTIR and 1H- NMR.
用双酚 A型环氧树脂与乙酸反应,合成了具有刚性骨架的环氧树脂加成多元醇 (EAP),并用 FTIR与 1H- NMR对其进行了表征。
6)  dendritic-polyester polyol
树枝状聚酯多元醇
1.
The paper studies the synthesis of multiallyl-ester of dendritic-polyester polyol.
在三乙胺作催化剂的情况下 ,树枝状聚酯多元醇与丁二酸酐作用生成树枝状聚酯多元醇丁二酸单酯 ;后者在相转移催化下 ,与氯丙烯在弱碱条件下进行成酯反应 ,合成了未见文献报道的树枝状聚酯多元醇丁二酸烯丙基酯化产物 ;羟基酯化率为 80 %。
补充资料:海南龙血树(小花龙血树)
DracaenacambodianaPierreexGagnep.

百合科Liliaceae

乔木状,高3-4m。叶聚生于茎和枝顶,几呈套叠状,长约70cm,抱茎,无柄。圆锥花序长约30cm,花序轴无毛或近无毛。分布于海南西南部,生于背风区的干燥砂土上。越南、柬埔寨也有分布。国家三级保护濒危种。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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