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1·The natural rubber has been gathered from the sap of plants for centuries.

天然橡胶是几个世纪以来从植物汁液中收集来的。

2·Natural rubber has problems, though.

然而，天然橡胶也有缺点。

3·These insulating gloves are made of natural rubber.

这种绝缘手套是由天然橡胶制成的。

4·Synthetic rubber has substituted natural rubber in many fields.

合成橡胶在许多领域取代了天然橡胶。

5·Natural rubber has been gathered from the sap of plants for centuries.

从植物汁液中收集天然橡胶已经有几个世纪的历史。

6·Natural rubber is one of the four main rural materials for industry.

天然橡胶为四大工业原料之一，也是极为重要的战略物资。

7·Our furniture is made mainly out of natural rubber, wood, veneer and palm wood.

我们的家具的原材料主要是由天然橡胶，木材，胶合板和棕榈木组成。

8·But even today natural rubber makes up around 14% of car tyres and 27% of lorry tyres.

但是直到今天，制造轿车胎仍然需要约14%的天然橡胶，载重胎是27%。

9·Natural rubber is obtained from rubber trees as a white, milky liquid known as latex.

天然橡胶—一种叫做“乳胶”的白色乳状液体—取自橡胶树。

10·Natural rubber latex, natural rubber, rubber composition containing the same, and tire.

天然胶乳，天然橡胶，含有该物质的橡胶组合物及轮胎。