Diamond grinding wheel is the development of the early seventies and applications, mainly for non-ferrous metals materials processing.
金刚石砂轮是七十年代初开始研制和应用的,主要用于非铁族金属材料的加工。
We must imagine the early Earth as a mixture of rocky materials, metals, and trapped gases, subject to constant bombardment by smaller planetesimals and without much of an atmosphere.
我们必须想象早期的地球是岩石材料、金属和封闭气的混合物,受到较小的星子的持续轰击,没有多少大气。
The process is possible only with certain materials (plastics, resins and metals) and with a precision of around a tenth of a millimeter.
这个过程只能用特定的材料(塑料,树脂和金属),精度在0.1毫米左右。
Trading was important, as so many raw materials, the semiprecious stones for the decoration of the temples, timbers for roofs, and all metals, had to be imported.
由于大量原材料,如用于装饰庙宇的半宝石石料、建造屋顶的木材和所有金属都需要进口,贸易变得至关重要。
Materials science studies what makes up our world -- the metals, semiconductors, plastics we use to make all our devices, products, and technologies.
材料科学的研究决定了我们的世界——金属,半导体,塑料都用在了我们的设备,产品和技术上。
We also seek to “mix it up” in terms of materials – beadwork, metals, wood, ivory, glass, textiles, ceramic, and so on.
我们也试图在材料方面进行“多元混合”——展物的质地有珠饰品、金属、木材、象牙、玻璃、纺织品、陶瓷等等。
Making integrated circuits involves depositing layers of materials such as semiconductors and metals on a silicon wafer.
制造集成电路需要将如半导体和金属等多层材料放置在硅片上。
Metals and other inorganic materials that do not turn into gas fall to the bottom of the chamber as molten slag.
金属和其他不能变成气体的无机材料,则会作为熔渣落到箱底。
But as such printers improve and become capable of using more durable materials, including metals, they've become a potentially interesting way to make working products.
不过,这类打印机的功能在不断改善,而且开始使用金属等更耐用的材料,因此它们正变成制作实用产品的潜在有趣工具。
Boeing and Airbus already are offering a new generation of larger jets built from fuel-saving lightweight composite materials instead of the ARJ21's traditional metals.
波音和空客已经生产出新一代更大型的喷气机,采用了省油轻质复合材料,而非arj21所采用的传统金属。
Metals and other inorganic materials that do not turn into gas fall to the bottom of the chamber as molten slag. Once it has cooled, this slag can be used to make bricks or to pave roads.
金属以及其它不能转化为气体的无机材料会落在密室的底部,成为熔渣,冷却下来可以用来作砖或铺路。
Many aircraft parts are made from highly specialised metals and other materials: will there be enough of these to go around?
许多飞机零部件都由高度专业化金属和材料制成,我们不禁要问:撑得住吗?
Other structures will be made from high tech materials called memory metals.
其它建筑物则由被称为“记忆金属”的高科技材料建造而成。
But the real goal of this work isn't tiny maps. Rothemund says that in the future, tiny DNA shapes could serve as scaffolds for quickly building nanostructures made of metals or other materials.
但Rothemund的目的不是做微型地图,Ro themund说,将来在使用金属或其他材料构造纳米结构时,微小的DNA结构可以作为支架使用。
India is another key consumer of the metals and other raw materials that Rio Tinto produces, including copper, aluminium, coking coal and diamonds.
印度是另一个力拓公司的金属和原材料的主要消费国。印度消费的金属和原材料包括铜、铝、炼焦煤和金刚石。
The most problematic materials may be rare-earth metals such as neodymium used in turbine gearboxes.
真正棘手的原料是稀土金属,比如用在涡轮机变速箱中的钕。
The factory processes 300 tons of materials a day, and each ton yields only about 150 grams of rare metals.
这个工厂每天处理300吨材料,每吨只能提炼出150克贵金属。
When China's economy is strong, it ranks among the world's most voracious consumers of oil, metals and other raw materials.
经济强劲时,中国是全球最主要的原油、金属和其他原材料消耗国。
Everything in the universe -metals, gases, dogs, doughnuts -is made of materials with positive and negative charges.
宇宙中的任何物体都是由带有正电荷和负电荷的物质组成的。
The Quarren would provide the raw materials and metals while the Mon Calamari refined them into useful items of technology.
夸润人提供未加工的材料和金属,而蒙卡拉马里人将这些原料精制为有用的科技产品。
One main strategy is the use of bio-degradable materials, which can reduce the damage caused by plastic bags, packages and metals to the environment.
一个主要的策略是使用生物可降解材料,这样可以减少那些塑料袋、包装还有金属对环境的伤害。
A car consists of about three-quarters of metals, the rest is plastic and other materials.
一辆汽车包括大约四分之三的金属,其余是塑料和其它材料。
Raw materials from Brent crude to wheat, cotton and metals fall in unison, paring strong gains made since mid-March on lost oil output in Libya and steep falls in agricultural stocks.
从布伦特原油到小麦、棉花和金属等原材料价格同步走低,削弱了从3月中以来因利比亚原油减产和农产品储量锐减而取得的强劲涨幅。
The main classes of materials are metals, polymers, ceramics, and composites.
材料的主要分类为金属、高聚物,陶瓷,及合成材料。
Scientists at the University of Rochester have used lasers to transform metals into extremely water repellent, or super-hydrophobic, materials without the need for temporary coatings.
罗切斯特大学的科学家们已经用激光将金属变成憎水,或超疏水性材料,而不再需要临时涂料。
Invaders may loot precious metals and survivors may scavenge building materials, but no one ever carries off the broken pottery - no one, that is, except archaeologists.
侵略者可能会洗劫珍稀的金属物品,幸存者可能会四处寻找建筑材料,但从来没有人会将碎陶器拿走——没有人,也就是说,除了考古学家。
The most widely used stencil materials are metals, primarily stainless steel and nickel.
钢网最常用的材料是金属,主要是不锈钢和镍。
Microchips are also made up of a number of different materials: they contain metals, ceramics, semiconductors, and plastics.
芯片又是有很多材料组成,有金属、陶瓷、半导体、塑胶。
Microchips are also made up of a number of different materials: they contain metals, ceramics, semiconductors, and plastics.
芯片又是有很多材料组成,有金属、陶瓷、半导体、塑胶。
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