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low heat efficiency
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  热效率低
     For problems of low heat efficiency and serious inadequate output of 211-75/39 type PC boiler, reasons were analyzed and technical retrofit using PW-Ⅰ PC burner was carried out.
     针对211-75/39型煤粉锅炉热效率低、出力严重不足等问题,分析了其中原因,进行了换用PW-Ⅰ型燃烧器的配套技术改造;
短句来源
     40t/h boiler of Anyang Iron & Steel Plant has unsatisfactory combus- tion and low heat efficiency due to old equipment and uneven particle Sizes of raw coal.
     安钢40t/h锅炉由于设备老化、原煤颗粒度不均等原因,造成该炉燃烧不好、锅炉热效率低
短句来源
     mostly of direct heating,is hard to fit in with application requirements due to its low heat efficiency and heavy pollution.
     以往的煤焦油瓷漆加热方式以直接加热为主,其缺点是热效率低、污染严重,不能很好地适应生产要求。
短句来源
     The paper intends to introduce the authors' success in developing a kind of heat medium to resolve some problems that exist in the northwest high altitude and cold area, such as the slow heat supply speed and low heat efficiency.
     针对西北高海拔、高寒地区供热速度慢、热效率低等问题,研制出一种新型、高效热媒,热媒在一个大气压下沸点可达到116℃。
短句来源
     At the same time, in accordance with problems of more dust, high smoke temperature and low heat efficiency of steam generator occurred during the process of using super heavy oil as fuel, the structure of the generator is modified, and heat efficiency of steam generator has improved by 5 percent.
     同时,针对这一过程中出现的超稠油灰份大、烟温高、注汽锅炉热效率低等问题,对锅炉结构进行了改进,使注汽锅炉的热效率提高了5个百分点。
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  “low heat efficiency”译为未确定词的双语例句
     The measures which fluidized bed boiler is transformed into circulating fluidized bed boiler using the in furnace space circulation combustion technology are given through analyzing reasons of low heat efficiency in the fluidized bed boiler operation.
     通过对沸腾锅炉运行中存在的热效率低的原因分析 ,提出了用炉内空间燃烧技术把沸腾炉改造成循环流化床锅炉的措施。
短句来源
     Aiming at low heat efficiency and great deal of squander of energy source,the innovation test of a new type resistance furnace which is with low consumption and high efficiency features is introduced.
     针对现有电阻炉热效率很低、浪费大量能源的问题,介绍了将热效率低的旧式电阻炉改造为耗电少,热效率高的新型电阻炉的试验。
短句来源
     The in service tubular heaters built early in refineries and chemical plants have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including (1) enlarging the surface area of convection tubes to increase the thermal load of the convection section;
     针对早期建造的炼油厂和化工厂在役管式加热炉热负荷和热效率低的状况 ,提出了若干技术改造措施包括 ,增大对流管表面积以增大对流段的热负荷 ;
短句来源
     Gas infrared radiant roast duck oven rectifies the disadvantages of exsisting different sorts of roastduck oven such as poor combustion operation conditions and low heat efficiency.
     燃气红外辐射烤鸭炉一改过去各种烤鸭炉的燃烧工况差、炉子热效率低的缺点。
短句来源
     To find the reason for the low heat efficiency of pulverized coal boiler with 130t/h and melt slag produced on the vapourizing surfaces, the flowing field of isothermal gas and the parameters for heat engineering in boiler is measured. Furthermore, the flowing field and combustion of pulverized coal and heat transfer are modeled numerically by using k ε g turbulence combustion model for gas phase and two competing reactions models for the coal devolatilization.
     为了了解额定蒸发量为 130t/h的煤粉锅炉热效率偏低、水冷壁常发生结焦现象的原因 ,对锅炉进行了冷态空气动力场以及热工综合测试 ,并应用k ε g气相湍流燃烧模型与煤的双挥发反应热解模型对炉内流动、燃烧以及传热过程进行了数值计算。
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  相似匹配句对
     Low and N.
     Low和N .
短句来源
     On Low Heat Rejection Engines
     论低排热发动机
短句来源
     Low—temperature exhaust--heat and its exploitation
     低温余热利用及其开发
短句来源
     The Analysis of Exergy Efficiency in the Low Temperature Heat Exchanger
     低温换热器的效率分析
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     low cost.
     低的1/f噪声;
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The traditional technology of dring longan had some shortcomings such as time-consuming, high intensity of labour, unevenness of temperature for drying, low heat efficiency and unstable quality. The author, by using a new production technology, has designed a dried longan production workshop for an integrated food factory in Xianyou County, transferring the new technology in laboratory to the production in factories. The major operation procedures of the new technology are: pre-treatment of raw materials,...

The traditional technology of dring longan had some shortcomings such as time-consuming, high intensity of labour, unevenness of temperature for drying, low heat efficiency and unstable quality. The author, by using a new production technology, has designed a dried longan production workshop for an integrated food factory in Xianyou County, transferring the new technology in laboratory to the production in factories. The major operation procedures of the new technology are: pre-treatment of raw materials, cleaning and washing, de-waxing by chemical method, preliminary drying, moisture regaining, grading, second drying, cooling,|packaging and storage. The key equipment is steam drying room. The key points of the technology are the de-waxing by chemical method and the control of drying time and temperature. Drying process is relatively complicated in dehydration and the law for drying is also comparatively complex. The author has used a simplified method to calculate the drying process and it is close to production practice. The dried longan produced through the new technology is superior both in appearance and quality to the dried longan made through traditional technology. The new technology can be popularized.

传统的桂元干生产工艺花工费时,劳动强度大,烘焙温度不均,热效率低,品质不稳定。作者采用桂元干生产新工艺为仙游县果蔬综合食品厂设计了桂元干生产车间,使新工艺由实验室转化为工厂化规模生产。新工艺的操作要点是:原料预处理、清洗、化学去蜡、初烘、回潮、分级、复烘、冷却、包装、入库。关键设备是蒸汽烘房,关键技术是化学去蜡和烘焙时间与温度的控制。烘干过程是一个较为复杂的物料脱水过程,烘干规律也较复杂,作者用简化方法计算烘干过程,与生产实际相当接近。用新工艺生产的桂元干,在外观和品质上都优于传统工艺,可以推广。

In this paper the experimental study on heat efficiency and combustion characteristics of 35t/ h fluidized bed boiler have been carried out. The paper analyzes the cause of lower heat efficiency of the boiler and puts forward measures for its further improvement.

本文对35t/h流化床燃烧锅炉进行了热效率及燃烧动力特性的试验研究,分析了热效率较低的原因,提出进一步提高流化床燃烧锅炉热经济性的措施。

Saving energy technical remake under no normal central-heating condition in DaqingPetroleum Institute as an example shows analytical method about central heating effi-ciency, illustrates the necessity of the low heat efficiency and heat imbalance centralheating system, and discusses the principle, the method and the critical question in theremake design.

以大庆石油学院的非正常工况热网系统技术改造为例,给出了供暖系统效率的分析方法,说明了对热效率低、热平衡失调的热网系统进行改造的必要性。论述了改造设计的原则、方法以及在改造设计中要注意的问题。

 
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