天然橡胶

Hevea brasiliensis, often referred to as the rubber tree, as a major source of natural rubber, is a very important economic and energy of tropical crops, and has played an important role in the world economic development.

巴西橡胶树，作为天然橡胶的主要来源，在世界经济发展中一直占有重要的地位，是一种非常重要的热带经济及能源作物。

Natural rubber which is cis 1,4 - polyisoprene is composed of isopentenyl pyrophosphate In Hevea brasiliensis.

巴西橡胶树中的天然橡胶是顺式-1，4-聚异戊二烯（cis-1，4-polyisoprene），其基本组成单元是异戊烯基焦磷酸(isopentenyl diphosphate ，IPP)。

Fumed-silica surfaces were modified with resorcinol and hexamethylenetetramine complex, and NR/M-silica nanocomposites were prepared in mixing and curing process. Structure and properties of NR/M-silica nanocomposites were investigated by mechanical testing ,cross-linking density determination, transmission electron microscopy, differential scanning calorimetry, fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results showed that M-silica have obvious reinforcement effect on NR vulcanizate.

用间苯二酚与六亚甲基四胺络合物对气相法白炭黑进行表面改性，通过混炼和硫化制备了天然橡胶/改性气相法白炭黑（NR/M-silica）纳米复合材料，并通过力学性能测试、交联密度测定、透射电镜、差示扫描量热法、红外光谱和X射线光电子能谱等手段研究了纳米复合材料的结构和性能。

He produced the desired results by joining two sheets of fabric with dissolved India rubber soaked in naphtha.

他在两层织物之间加入浸泡在石脑油中溶解了的天然橡胶，结果如其所愿。

Our main running scope includes: international trade, transit trade, interborough trade, goods and technology import and export, all kinds of natural and compound rubber trade, tire export etc..

公司主要经营范围：国际贸易，转口贸易，区内企业之间贸易及贸易下加工整理，货物和技术的进出口，经营各种天然橡胶，合成橡胶，轮胎出口业务。

The isoprene rubber can also be called "synthesis of natural rubber".

异戊橡胶也被称为"合成的天然橡胶"。

This is because they have a quiet similar microstructure,so isoprene rubber has the same excellent combination properties with natural rubber in performance.

这是因为它们有着十分相似的微观结构，因此异戊橡胶在性能上与天然橡胶有着一样的优异综合性能。

Isoprene rubber is one of the general synthetic rubber, but it is quite similar to the natural rubber even like twin.

异戊橡胶是通用合成橡胶的一种，但其却和天然橡胶如同孪生胎十分的相似。

Sole can use natural balata or use ligneous reach a skin to make a copy.

鞋底可用天然橡胶或用木制及皮制底。

Mackintosh, who made coats of cloth covered with natural rubber.

后来， 一位叫麦金托什的人，用涂有天然橡胶的布料做了一件外套。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。