[物化]双键

double bonds───双键

double bind───进退两难的处境

double binds───进退两难的处境

double bed───双人床

double bounce───两跳

double bogey───双柏忌；比标准杆多二杆（等于doublebogie）

double-blind───双盲

double back───循原路折回；往回逃跑；把…对折

double bar───复纵线

The next bond is a double bond this happens when two pairs of electrons share.───另一种是双键,由两个原子共享二对价电子形成.

PU across - link agent double - bond ends is prepared by solvent polymerization with methyl methacrylate as solvent.───以甲基丙烯酸甲酯为溶剂,通过溶液聚合得到两端为双键的聚氨酯 交联剂.

The heat - resistance is improved by the addition of initiator to control the content of double bond.───通过加入适量的引发剂控制体系的双键含量,可有效提高SBS的耐热性.

The peptide bond has substantial double - bond character and affects properties of proteins by limiting available information.───肽键实质上具有稳定的双键特性,并且通过限制有效信息来影响蛋白质的特性.

So if we look at its length, it's actually shorter than a single bond, but longer than a double bond.───因此如果我们看它的键长的话，它实际上比单键更短，却比双键更长。

They react by adding other chemical agents at the double Bond to form derivatives or polymers.───这些化合物的最大用途在于双键与其它化学物质的反应.

Compared with diolefine rubber, EPDM has less double bond.───与二烯烃橡胶相比, EPDM的双键很少.

It's especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers.───JH-S69 最适用于在含双键聚合物或其共混物中采用含羟基填料的橡胶配方.

The triple bond does not usually react so vigorously at a carbon - carbon double bond.───三键在反应时一般不象烯烃中的碳 - 碳双键那样剧烈.

In the ethyne molecule, a double bond links together the two carbon atoms.───在乙烯分子中是由一个双键将两个碳原子连结在一起的。

So really, you can not ever rotate a double bond, it makes your molecule very rigid.───实际上，你不能转动一个双键，它使得你的分子很坚固。

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