But supplies of the materials used to make them are limited.

但用于制造它们的材料供应有限。

There are shortages in a number of materials used to make the things we buy.

用来制作我们购买的商品的一些材料出现了短缺。

Allegheny Technologies, which makes composite materials used in the aircraft, has been similarly clobbered.

制造飞机所用复合材料的阿勒格尼技术公司也遭受了类似的打击。

It is popular because the materials used to build it are not hard to find.

它非常受欢迎，因为制造原料很容易找到。

One of the main materials used to produce lithium-ion batteries is lithium, a light metal substance.

生产锂离子电池的主要材料之一是锂，这是一种轻金属物质。

Initiatives include efforts to reduce its environmental impact, water consumption and materials used in packaging by 2025.

该公司的倡议还包括，到2025年，减少其对环境的影响、水的消耗以及包装材料的使用。

The primary material used in production of steel.

其中的铁矿石是生产钢铁的主要材料。

The development team says the treatment contains only safe materials widely used in food, drug and agricultural products.

该研发团队表示，这种粘稠物体只包含对环境无害的物质，这些物质已广泛适用于食物、药物、农产品中。

Depending on the material used, the laser can react differently.

根据使用的材料，激光可以产生不同的反应。

It collects, preserves and maintains the raw genetic material used in agriculture.

这里收集、保存并维护农业中使用的原始基因原料。

Petroleum or crude oil is the same raw material used to make sodium polyacrylate.

石油或原油是用来制造聚丙烯酸钠的相同原料。

Lithium is an important material used in making some kinds of batteries.

锂是制造某些类型电池的重要材料。

For example, the raw materials used for making a car are not worth much until they are made into a car.

例如，制作小轿车的原材料并不怎么值钱，但但当它被制造成小轿车，它就值钱了。

The study centered on the creation of electric power and did not look at the materials used in electric car batteries.

这项研究的重点是电力创造，而不是电动汽车电池所用的材料。

Iraq has warned the United Nations that Sunni militants have seized nuclear materials used by scientists in the city of Mosul.

伊拉克警告联合国称，逊尼派激进分子在摩苏尔市夺取了科学家使用的核材料。

A few hour's drive away in Basra is a robot-operated factory producing chemical adhesives and the liquid materials used in construction.

在距离巴士拉几个小时车程的地方，有一家机器人操作的工厂，生产化学粘合剂和用于建筑的液体材料。

The new sanctions aim to hit Russia's revenue sources and restrict its access to goods and materials used for battlefield capabilities.

新的制裁旨在打击俄罗斯的收入来源，并限制其获得用于战场战力的商品和材料。

Researchers look at about 70 different features of each piece of net, including the kinds of material used.

研究人员研究了每张网的70个不同特征，包括使用的材料。

Like how thick and warm the runners can be the overall size and material used to make the sled.

比如雪橇的厚度和温度取决于雪橇的整体尺寸和材料。

As the most common material used to create semiconductors is silicon, this region soon became known as Silicon Valley.

因为用于产生半导体的最常见的材料是" 硅" ，于是这个地区很快就被称为" 硅谷" 。