Plastic is made out of long, carbon chains.

塑料由碳链组成。

What is the longest mountain chain in the world?

世界上最山脉是哪座？

History doesn't have this long chain.

事实上历史没有这么连续性。

What is the Earth's longest mountain chain above sea level?

地球上海拔最高山脉是什么？

It actually has a very long and somewhat problematic supply chain.

它实际上有个有问题供应链。

They're polymers, made of long chains of repeating chemical units.

它们是聚合物，由链重复化单元组成。

Comets and asteroids could be the missing links of a long chain.

彗星和小行星可能是链中缺失。

Like DNA, RNA is made up of a long chain of nucleotides.

和 DNA 样，RNA 是由串核苷酸组成。

With them, one of the links in a long chain of evolution snaps.

因为这样 个生物进化链断开了。

Plastics are made up of long chains of polymers with very strong bonds.

塑料由链聚合物组成，它们之间化键非常牢固。

They believe that they are part of a long chain, or line of people.

他们认为自己是大族人部分。

Around her neck she wore a long gold chain, from which hung a large medallion.

她脖子上挂着串大金项链，项链上吊着个挂饰。

Let's take a look at a longer food chain that also begins with grass.

让我们来开另组稍微大点食物链，仍然设生产者为草。

A group can be anything from a single atom, to a long chain, to rings.

组可以是个单原子、链或结构。

In mucin, long chains of sugars are attached to specific amino acids in the protein backbone.

在黏蛋白里，串糖 会黏着於特定氨基酸位於蛋白质骨干。

It's a polymer, meaning it's made of long chains of repeating units of atoms strung together.

它是个聚合物，说明它是由串相同原子而成。

Volcanoes form the backbone of the longest mountain chain on our planet, the Andes of South America.

火山构成了地球上最山系主干，南美洲安第斯山脉。

There's other insects out there that eat predominately wax which is also full of long chain polymers.

还有其他昆虫主要以蜡为食, 蜡也含有链聚合物。

Around its middle was a long chain, which had money-boxes, keys, bank books, and heavy purses on it.

条锁链缠在腰间，上面挂着钱盒子、钥匙、存折和厚厚钱包。

Proteins are long chains of amino acids that do all kinds of important things inside the human body.

蛋白质是氨基酸链，在人体内起着各种重要作用。