查询词典 gas detector

First, the performance of the conventional single-user detector、the optimal multiuser detector、the decorrelating detector and MMSE blind multiuser detectors have been analyzed in this paper, via simulation confirmation, an effective blind multiuser detector that can solve MAI and near-far problem is attained, its implementation is introduced preparatorily in this paper.

首先，本文较为系统地分析了传统检测器CD、最优检测器OMUD、解相关检测器DD及MMSE盲多用户检测器(基于子空间的盲算法及基于CMOE准则的盲算法)的性能，通过仿真验证，得出一种能有效解决多址干扰和远近问题的盲多用户检测器，并初步给出其实现方案。

Gas Distribution series of devices - from the control point of view, a semi-automatic and fully automatic with two gas from the gas source is composed of two groups of (liquefied petroleum gas, compressed air) and three groups of (nitrogen , Hydrogen, propane or butane) of the points is to provide natural gas and gas cities of the ideal alternative source of gas equipment, especially for gas production-line equipment manufacturers and test firing of Quality Supervision, Inspection departments for laboratory and performance of combustion Test.

从配气气源组成有二组份及三组份（氮气、氢气、丙烷或丁烷）之分；是提供天然气和城市人工煤气替代气源的理想设备，特别适用于燃气器具生产企业在线生产试烧和质量监督检验部门用于实验室及燃烧性能的检验。

When the gas flux is constant, the ratio of reduced resistance is improved with the increase of the water stream velocity. However, the relationship between the gas flux and the ratio of reduced resistance is more complex. When the water stream velocity is constant, if the gas flux is small in contrast, the effectiveness of reduced resistance is not obvious. But when the gas flux increased, the jetted gas will form """"archform"""" which will augment the shape resistance. In this condition, resistance could not be reduced and could even be increased, if the gas flux continues to be increased. So that there needs setting a baffle called step, which introduces the jetted gas into the turbulence boundary layer. In this case, the shape resistance may be fairly great. Besides, the waterline of model has also some effect on the ratio of reduced resistance, which acts on the size of wave. If waterline is deep, the wave could not affect the deployment of microbubble layer, so there is almost no effect on ratio of reduced resistance. However, the wave would affect distributing of microbubble layer under the model so that the gas could leak out from the two sides of model and directly affect the ratio of reduce resistance if the waterline is very small. Whether installing the dashplate or not has also the great influence on the effectiveness the ratio of reduced resistance. From the results of experiment, conclusion is that adding dashplate will greatly improve the effectiveness of reduced resistance.

当喷气量一定时，水流速度增大，减阻率提高；喷气量与减阻率之间的关系比较复杂，速度一定时，如果喷气量较小，减阻效果就比较差，但当喷气量增大的话，喷射出的气体就会形成一个&拱度&，增加了船模的形状阻力，在这种情况下最好采取断阶喷气，把气体引入到湍流边界层中，在这种情况下，船模的形状阻力比较大；船模的吃水对减阻率也有一定的影响，主要表现在波浪大小上，如果吃水较深，波浪影响不到微气泡层的分布，对减阻率不会造成太大影响，如果吃水较浅，波浪就会影响到微气泡层在船模底部的覆盖情况，可能会有部分微气泡从船模两侧泄漏，这样就直接影响到了减阻效果；是否安装压浪板，对减阻率也有较大的影响，从试验结果可以看出，在船模尾部加设了压浪板时，减阻效果明显得到改善。

To promote the coordinated development of upstream, mid-stream, and downstream of the natural gas industrial chain and map Out national policies on natural gas industry; a. to encourage the users in urban gas. gas-fueled vehicles, and industrial gases; c. to build up a full range of natural gas supply security system; b. to allow the local governments to develop regional economy by supporting natural gas industry; f. to complete the price formation mechanism of natural gas by adjusting the prices at each link from upstream to downstream; e.

提出了6条具有可操作性与政策前瞻性的保持协调发展的策略：①促进天然气产业上中下游协调发展，制钉国家层面的天然气工业发展规划，培育以城市燃气、天然气汽车、工业用气为主导的天然气市场体系；②构建全方位的天然气供应安全保障体系；③地方政府大力支持天然气行业，促进区城经济发展；④抓住当前调价的良好时机，尽快建立天然气产业链各环节合理化的价格机制。

Ltd's 40 t/h boiler heating surface has been optimized based on the analysis of coal-fired boiler and gas-fired boiler's different characteristics and heat transfer technology. At the same time, combustion mode and measures of stable combustion are analyzed and discussed, for the flameless combustion technology characters such as combustion speed, high-temperature, combusting completely and the stability of combustion, easy to operate, with the different combustion characteristics of blast furnace gas, coke-oven gas, converter gas and the actual needs of Chongqing Iron and Steel Co. Ltd's gas balance, a suitable combustion device is designed to improve boiler's thermal efficiency, recovery efficient of by-product gas, and reducing gas emission.

本文通过对燃煤锅炉与燃气锅炉的不同特点对比分析以及受热面传热技术的探讨，对重钢40t/h锅炉受热面进行了优化改造；同时对燃气燃烧方式以及强化燃烧的技术措施进行了分析和讨论，利用无焰燃烧技术的燃烧速度快、燃烧温度高，燃烧完全及扩散燃烧技术的燃烧稳定、运行可靠、结构简单等特点，结合高、焦炉煤气的不同燃烧特性和重钢煤气平衡的实际需要，选择、设计了合适的燃烧装置，实现了提高锅炉热效率，高效回收利用副产煤气，降低煤气放散的目的。

Large condensate gas pools are developed in the Ordovician and Carboniferous in the Lunnan low salient. Geochemical study shows that the Ro of gas condensate in these gas pools is in the range of 0.8% 1.0%(far below the threshold of R o＝1.3％ for thermal cracking), and the condensate gas is overmature dry gas (with R o＞2.0%). Moreover, the crude oil and dry gas in the study area were charged in different stages, indicating that the genesis of the condensate gas was not thermal cracking.

轮南低凸起奥陶系及石炭系发育大规模的凝析气藏，地球化学的研究结果表明，这些凝析气藏中凝析油 Rc 在0.8%~1.0％（远低于热裂解成因 R o＝1.3％的门限），凝析气为过成熟干气（回归 R o＞2.0％）；同时，区内原油与干气的充注期相异，表明轮南地区的凝析气藏并非热裂解成因的产物。

The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section Ⅱ of Jialingjiang formation is mainly attributed to sapropel type organic matter gas of Permian, comes from carbonatite hydrocarbon rocks Permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of Jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas.

摘要通过对川中－川南过渡带西部的磨溪－潼南地区嘉二段天然气组成、碳同位素组成、高演化天然气储层沥青生物标志化合物的系统分析测试和混合成因气的定量估算，阐明了该区嘉二段天然气主要属于二叠系腐泥型有机质成因气，来源于二叠系过成熟为主的碳酸盐岩烃源，主力气源与嘉陵江组自身的碳酸盐岩烃源无关，并具有油型裂解气的地球化学特征。

The method comprises heating up the lactic acid solution to gasify at 150-200 degree C, mixing the obtained mixed vapour of lactic acid and water with the carrier gas, entering into gas-solid catalytic reactor to get the reaction product gas by the action of a modified Y zeolite molecular sieve catalytic agent and dewatering after heating up the mixed gas to 200-450 degree C, obtaining the propenoic acid solution through gas-liquid dissociation after cooling the reaction product gas, obtaining coarse propenoic acid products form the propenoic acid solution by gas stripping, azeotropic distillation, extraction and rectification in turns.

其特征在于将乳酸水溶液加热至150～200℃气化得到的乳酸-水混合蒸气与载气混合，将混合后的气体继续加热到200～450℃后进入气-固相催化反应器中经改性Y沸石分子筛催化剂作用脱水得反应产物气体，反应产物气体冷却后经气液分离得到丙烯酸溶液，丙烯酸溶液再依次经过气提、共沸蒸馏或萃取、精馏得到粗丙烯酸产品。

Producer gas: refers to the coal gas, mixed coal gas, water gas, single water gas and double water gas generated through vaporization in the gas producer using air and a small amount of steam or coke and semicoke.

发生炉煤气：是指用空气和少量的蒸气将煤或焦炭、半焦，在煤气发生炉中进行汽化所产生的煤气、混合煤气、水煤气、单水煤气、双水煤气等。

In combination with seismic reflection features and probable gas resource discussion, it is concluded that there probably exist two kinds of reservoir models in the X Block. In the areas where faults or collapse structures develop, the gas resource is probably composed of thermogenic gas, gas hydrate is characterized by multilayer distribution, while in the inactive areas the gas resource is probably composed of biogenic gas, and gas hydrate is characterized by monolayer, which mainly distributes in a narrow zone on the surface of BSR (bottom-simulating seismic reflector).

结合地震反射特征和可能的气源讨论初步认为，X区块天然气水合物的成藏模式主要有两种类型：在断裂或滑塌构造发育区，水合物的气源以热解成因气为主，水合物呈多层分布；在构造平缓地区，水合物的气源以生物成因气为主，水合物呈单层分布，且主要分布在似海底反射之上一个狭窄的范围内。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。