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二烯

na.diene
网络diolefin; Dienes; isoprene

二烯

英-汉网络释义

二烯

na.

1.diene

1

The modified organism ferments sugars in the biomass to produce isoprene , in such a way that it bubbles out as a gas.

这些改良的有机体将糖份在生物物质里发酵而生成气泡形式的异戊二烯。

2

Dicyclopentadiene : Noxious liquid . Handle with usual caution : do not ingest. If it is spilled on skin , rinse well with water.

二环茂二烯：有毒液体。如常小心处理：不要摄入。如果溅在皮肤上，用水冲洗干净。

5

This makes it easier to collect and purify compared with separating it out from a liquid .

这种收集和纯化产物的方式比起从液体中分离异戊二烯要更容易。

10

Dicyclopentadiene dioxide was hardly cured by amines or acid anhydrides alone , but can be well cured by acid anhydrides mixed with alcohols .

二氧化双环戊二烯难于被胺或单独的酸酐所固化，但能很好的被酸酐与醇所固化。

12

One of these petroleum by-products is isoprene .

这些石油副产品之一便是异戊二烯。

13

If there are two or more double bonds , the ending is -diene , -a triene, etc.

如果有二个或更多的双键，词尾应为 –adiene （二烯），-atriene （三烯），以此类推。

15

The polyester in these compositions is a 50% solution of a maleic acid -propylene glycol condensate in diallyl phthalate .

在这些配方中的聚酯是马来酸 --丙二醇缩合物在酞酸二烯丙酯中的 50%溶液。

16

A decline in iodine value is sometimes used to measure the reduction of dienoic acids during the course of autoxidation .

有时，碘值的下降用来测量在自动氧化过程中二烯酸的减少。

20

Technically, it is not ordinary diesel , either: in chemist-speak, it is an isoprenoid rather than a mixture of alkanesand aromatics .

从技术上讲，它并不是普通的柴油，从化学家的角度来讲，它是一种类异戊二烯而不是烷烃和芳香烃的混合物。

21

Under the guidance of its founder Jay Keasling, it has been working on a type of isoprenoid (a class of chemicals that include rubber ).

该公司在其创始人杰伊•科斯林（JayKeasling ）领导下致力于类异戊二烯（存在于橡胶中的一种化学物质）的研究。

22

Objective To investigate the distinction between schizophrenia and controls about exhaled levels of isoprene .

目的比较精神分裂症与对照组呼出气体中异戊二烯浓度的差异。

24

Some methods of modifying unsaturated polyester (UP) resin by dicyclopentadiene (DCPD) were presented in this paper.

阐述了用双环戊二烯对不饱和聚酯进行改性的几种途径。

25

A chemical mechanical polishing pad comprising a water-insoluble matrix which comprises (A ) a styrene polymer and (B) a diene polymer.

一种化学机械抛光垫，包含由（A ）苯乙烯聚合物和（B ）二烯聚合物构成的非水溶性基质。

29

The method for preventing the formation of peroxides from cyclopentadiene is to seal it With nitrogen .

防止环戊二烯生成过氧化物的方法，可充以氮气长期贮存。

30

Isoprene needs to be extremely pure to make synthetic rubber .

而异戊二烯必须极其纯净才能生产出合成橡胶。

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