半导体制冷器由于材料限制，主要应用于200 K左右的中低温领域。
Semiconductor coolers are usually used in medium low temperature on account of their material limit.
塑料使我们从自然的限制中得到解放，从长期限制人类的活动的材料限制和有限的供应中得到解放。
Plastics freed us from the confines of the natural world, from the material constraints and limited supplies that had long bounded hu man activity.
因而钻石化学蒸发沉淀的应用受到材料限制，要求材料在此温度下不软化例如硬质合金。
Thus, the application of diamond CVD is limited to materials which will not soften at this temperature such as cemented carbides.
等离子熔射快速模具制造是快速模具制造技术的一种，因其具有不受模具尺寸和熔射材料限制等优点而受到关注。
Plasma spray metal tooling has obtained a special attention for its advantages of fewer limits on the pattern's size and spraying materials.
世界上的建筑结构也根据材料的客观限制进行了设计。
The world's architectural structures have also been devised in relation to the objective limitations of materials.
因为它们的主要用途不是功能性的，所以它们只在制造材料方面受到限制。
Because their primary purpose is not functional, they are only limited in terms of the materials used to make them.
当然，由于手工劳动和当地可利用的泥砖和木材等材料的限制，与最初的欧洲教会模式产生了分歧。
Certainly, the limitations imposed by manual labor and the locally available materials of mud-brick and timber necessitated a divergence from the original European church model.
豆茎和旋耕机目前受到可用材料强度的限制。
Beanstalks and rotovators are currently limited by the strengths of available materials.
这些措施包括保护自然区，并限制建筑材料中的化学品含量。
These include protecting natural areas and limiting the amount of chemicals in building materials.
就像MDA方法受到了支持一样，众多关于MDA的实践应用、能力和限制的材料是可得到的。
As the MDA approach gains support, a number of materials are becoming available that address its practical application, strengths, and limitations.
如果经过恰当的预处理，糠皮就能够在混凝土工业中成为限制二氧化碳排放的优质有效材料。
If properly prepared, it could be a very useful, good material for efforts to limit emissions of carbon dioxide in the concrete industry.
过去他们是由硬质物质制成的，不是柔性材料，这是对他们潜在用途的限制。
They have traditionally been made from rigid substances, not flexible materials, and this is a limiter on their potential use.
材料因此被限制为当地可以找到的那些东西。
Materials are therefore often limited to those available locally.
在钢琴最初出现的18世纪早期，铁被用于制造琴丝，但是这种材料的张力和强度限制了其在发高音时的能力，佐丹奴说。
During the piano's genesis in the early 1700s, iron was used to make music wire, but the material's tension and strength limited its ability to produce loud sound, Giordano said.
然而原材料的精确混合上还是存在一些限制的，Rothenberg透露说一些原材料来自于一种蔬菜。
While the precise mixture of raw materials is still under wraps, Rothenberg revealed that some come from a vegetable source.
(即，是否所有的内容都是免费的，或者对访问采取了限制措施；是否需要注册，等等)如果在访问网站时需要收费，与可以从其他途径得到的材料相比，其收费标准如何？
(e.g., is all content free or are there restrictions on access, is registration necessary, etc.) If there a charge to access the website, how does this fee compare to other available materials?
附加功能包括与教授和同学视频聊天，无限制地通过视频和白板浏览材料和课程。
Additional features include video chat with peers and professors, unlimited access to lecture materials and office hours via video and whiteboard.
该报告称，中国通过限制钢铁、铝和化工等行业原材料的出口来保护国内制造商。
The report says China was protecting its domestic manufacturers, by limiting exports of raw materials used in the steel, aluminum and chemical industries.
一位工程师愉快的指出，美敦力合资公司作为当地企业，可以以低价购买所需原材料，而不用顾及中国对该种原材料的销售限制。
An engineer gleefully points out that as a local entity the Medtronic joint venture can buy essential rare-earth metals cheaply, despite Chinese restrictions on their sale (see article).
尽管原油是汽油的主要成分，而在谷类食品，脆薄饼和饼干的生产过程中，只需要使用非常少量的谷物，小麦和其他原材料，限制了制造商对价格的控制。
Though crude oil is the main ingredient of gasoline, processed foods like cereal, crackers or cookies use only a small amount of corn, wheat and other grains, limiting manufacturers' pricing power.
富国们已经习惯了无限制地获取廉价原材料：原材料价格已经下降了一个世纪甚至更长的时间。
Rich countries had become used to unlimited access to cheap raw materials: prices had been falling for a century or more.
由于纳米复合材料是复合而成，“空缺”和“填位”都被限制在涂层界面处。
Depending on how the nanocomposites are constructed, both the vacancies and the interstitials get trapped at the interfaces.
限制使用蓝宝石的因素主要是其价格以及这种材料难于加工和成形。
The use of sapphire is restricted by its cost and because the material is difficult to machine and form.
对涂层表面和环境空气的最大温度和最小温度的限制应当由涂层材料供应商提供，并应严格遵守。
Minimum and maximum temperature limits for the coated surface and for ambient air shall be supplied by the coating material supplier and must be followed.
正在流动的垫圈材料还会限制气体流程和堵塞在接头螺纹内。
The flowing washer material can also restrict flow paths and jam in the connection threads.
正在流动的垫圈材料还会限制气体流程和堵塞在接头螺纹内。
The flowing washer material can also restrict flow paths and jam in the connection threads.
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