本文介绍了换热管组的结构和制造难度。
In this article, the structure of the tube set and difficult aspects in fabrication were introduced.
因其技术含量新、制造难度大，我国前些年一直依赖进口。
In past years, China has been relying on importing it since it features high technology and is quite difficult to manufacture.
但是随着部件越来越小，它们的制造难度和成本也逐渐增加。
Yet as components get smaller, making them gets harder and more expensive.
回避了闪耀光栅制造的困难，降低光栅型波分复用器件的制造难度及成本。
The difficulty of producing the blazed gratings is avoided, and the difficulty and the cost of producing a grating type wave dividing multiplex device are reduced.
本发明的最大优点是缩短了光学组件的长度，有利于降低直光管的制造难度。
The major advantages of the present invention include shortened optical assembly length and easy manufacture of the straight collimator.
磁极是汽车发电机上的关键零件，其形状复杂，尺寸精度和内在质量要求比较高，制造难度大。
Alternate pole, which has complex shape and strict limit in its size and quality, is the key part in the automobile generator, so it is difficult to produce.
多工位级进模精度要求高，结构复杂，传统的串行开发存在着制造难度大、生产周期长的缺点。
Because of the high precession and complicated construction requirements, the multi-stationed progressive die is hard to process with the traditional serial development besides a long production term.
目前，国内大跨径悬索桥钢箱梁大多为全焊结构，具有结构复杂、熔透焊缝多，制造难度大等特点。
The domestic steel box beam for long-span suspension bridge is mostly welded structure at present, which features complex structure, a great deal of penetration welds, difficult manufacture.
爪极是汽车电机上的主要零件，其品种繁多，形状复杂，尺寸精度和内在质量要求比较高，因而制造难度很大。
Generator pole, which has many varieties and complex shape, is the key accessory of automobile generator and has strict limit in its size and quality, so it is difficult to produce.
汽水分离再热器（MSR）是核电站常规岛中较复杂的设备，它的技术含量高、制造难度大，一般均在国外制造。
Moisture Separator Reheater (MSR) is a complicated equipment in conventional island of a nuclear power station , it is made in abroad because it contains high technology and difficult manufacturing .
总之，氨基酸是很容易制造的，核苷酸也是可以制造的，但是有相当的难度，其他重要的生物小分子也可以被"无生命地"合成出来。
In summary, amino acids are easy to make, nucleotides can be made with considerable difficulty, and other biologically important small molecules can be synthesized “abiotically”.
您接受的字符越少，您给攻击者制造的难度就越大。
The fewer characters you accept, the more difficult you make it for an attacker.
其中一些细节阐释地很美，比如科学家如何设法合成那些可分解纤维素的酶以制造乙醇，这项科技攻关难度极大。
Some of the details are nice, such as the work of scientists trying to create enzymes to do the difficult job of breaking cellulose down to make ethanol.
制造商典型的想法是不好的产品是因为生产难度大、成本高，这是不称职的。
A product is not quality because it is hard to make and costs a lot of money, as manufacturers typically believe. This is incompetence.
第一种是采取与福特(Ford) T型车装配线相同的策略：制造商在不同工厂生产产品的组件，加大反向还原的难度。
One is the same tactic used on the Ford (f) Model-T assembly-lines: manufacturers build parts of products in different facilities, making them difficult to reverse-engineer.
由于双流道冷却装置在性能及其结构方面的特殊性，给该产品的制造带来了一定难度。
The particularity of dual channel cooling equipment in terms of performance and structure resulted in difficult manufacturing of this product to some extent.
各类滤波片的设计和制造技术是光信息科学利用最广和难度最高的领域之一。
The design and manufacture of the various filters are the most useful and difficult technology in the field of optical information science.
通过对联合循环余热锅炉螺旋翅片管与集箱焊接的组件的制造工艺进行改进，降低了装配难度。
Though the improvement of manufacture technology of the modules welding between spire-wing tube and header for combined cycle heat recovery boiler, difficulty of the assembling was shortened.
其实，就产品而言，设计制造d VR是具有很大难度的。
Actually, speaking of the product, the design makes DVR to have the very great difficulty.
其电枢制造工艺复杂、要求高、难度大，需要采用新的材料和加工技术。
The technological process to manufacture the armature of CBLDCM is complex, exigent and difficult. The new material and process technique are needed.
这势必增加汽车的制造成本、维护难度，并给汽车内数据传输带来不稳定的因素。
This certainly will increase the cost and difficulty to manufacture and maintenance of automobile.
热壁加氢反应器是炼油工业加氢裂化装置中的关键核心设备，制造工艺复杂，技术难度大。
The hot wall hydrogen reactor which has complicated manufacture process and needs high technology is a key equipment of hydrocracking apparatus in refinery.
该工艺打破了娄似接头采用传统的铺锡钎焊方法，大大降低了工艺程难度、制造成本，缩短了生产周期、提高焊接接头的强度。
This process is joint Lou broke traditional tin soldering shop, greatly reduce the cost of manufacture process, the difficulty, shorten the production cycle, and improve the welding joint intensity.
因此输送硫酸的泵阀通常采用高硅铸铁泵(铸造及加工难度大)、高合金不锈钢泵(20号合金)制造。
Therefore transportation of sulphuric acid valve is usually a high silicon iron pump (casting and machining difficult), high-alloy stainless steel pumps (on the 20th alloy) manufacturing.
制造过程的复杂性导致过程建模、预测和控制难度增大。
The complexity of manufacturing processes causes difficulties in process modeling, forecasting and control.
五轴加工机床由于生产制造技术的难度远远大于三轴机床，很长时间没有解决国产化问题；
Manufacturing technology of five Axis Machine is more difficult than three Axis Machine, so its manufacture has not been nationalized for a long time.
因此输送硫酸的泵阀通常采用高硅铸铁（铸造及加工难度大）、高合金不锈钢（20号合金）制造。
Thus transport of sulfuric acid pump usually high silicon cast iron (casting and processing is very difficult), high-alloy stainless steel (alloy No. 20) to create.
制造带锁的盒子，增加获取农药的难度，这些措施都能降低农药的使用量，因此也降低了自杀率。
And by creating lock boxes and making it more difficult to have easy accessibility to pesticides, we've been able to show that we can reduce the use of pesticides and thereby the rate of suicide.
高等瓷器拥有远高于一般瓷器的制造工艺难度，因此在古代皇室中也不乏优美瓷器的珍藏。
Senior China has much higher than general porcelain production technology difficulty in ancient royal families, so there are the porcelain collection.
高等瓷器拥有远高于一般瓷器的制造工艺难度，因此在古代皇室中也不乏优美瓷器的珍藏。
Senior China has much higher than general porcelain production technology difficulty in ancient royal families, so there are the porcelain collection.
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