查询词典 gas-mask

This paper describes an upwards construction method using the columns of a gas holder to sectionally assemble side plates of a 2×104 m3 gas holder in aspects of installation sequence and main steps, benchmark and geometric dimension measurement, major component construction and gas holder adjustment techniques.

实践证明，该施工方法与以往利用脚手架的施工方法相比，节约施工费用约10万元，提前工期2个多月。

Wear resistance, good corrosion resistance, high-tech nano-ceramic materials sealed deputy, ten thousand times does not wear headstock applied to a variety of media: liquid, semiliquid, paste liquid, air, flue gas, gas, combustible gas, solid powder, grain materials containing many impurities in the two-phase body easily precipitate, easily scaling to cut off other special media, regulation and transmission control.

耐磨、耐腐蚀性能好：高科技纳米陶瓷材料密封副，启闭一万次也不磨损，适用于多种介质：液体、半流体、浆状液、空气、烟气、煤气、可燃气体，固体粉料，晶粒料及含杂质多的两相流体易沉淀、易结垢等特种介质的切断、调节及输送控制。

On this basis, according to historical data, apply ANN and differential simulation method to get the quantitatively correlative relations between each production and its own influence factors, and introduce the new methods of prediction for dynamic indexes with gas-field development (The combinatorial prediction method based on fuzzy comprehensive evaluation, the method of ANN to select optimally combinatorial prediction models and the ANN prediction method based on genetic algorithm).(2) Base on mathematical programming, combine with quantitative economics and techno-economics, introduce economical indexes to establish production"s distribution optimal model, production"s constitution optimal model and measured production"s constitution optimal model, including multi-objective models and five-years models. Upon this, the optimal project for all gas field and each gas-collected factory can be got. Also, introduce the time value of capitals to improve on these models.(3) Base on the optimal solution theory and algorithm theory for the nonlinear programming problem, introduce the SUMT algorithm and genetic algorithm to study how to solve the models, and on the basis of normal genetic algorithm, make use of auto-adaptively modulating method to improve on normal genetic algorithm; Base on algorithm"s convergence theory and calculation"s complexity theory to analyze seriatim SUMT algorithm"s convergence and genetic algorithms convergence, and compare performance with each other.

在此基础上，利用神经网络方法和微分模拟方法根据历史数据得到各分项产量与其影响因素之间的定量关联关系，并引入气田开发动态指标新的预测方法(基于模糊综合评判的组合预测方法、神经网络优选组合预测模型预测方法以及基于遗传优化的神经网络预测方法)；(2)以数学规划为基础，结合数量经济学和技术经济学，引入经济指标建立产量分配优化模型、产量构成优化模型、措施产量构成优化模型、气田开发多目标规划模型以及五年规划模型，进而获得全气田及各采气厂的最优方案，并引入资金时间价值对五年规划模型进行改进；(3)以非线性规划问题的最优解及算法理论为基础，引入SUMT算法以及遗传算法对模型的求解进行研究，并在原有的遗传算法基础上，引入自适应调整方法对遗传算法进行改进；以算法的收敛性理论和计算复杂性理论为基础，逐一分析SUMT算法以及遗传算法的收敛性，并比较三种算法的优劣性。

However, the liquid water exists on the inner wall and the pipeline sinkage before the line comes on stream will have a humidification function to the natural gas, because of which the dew point temperature of natural gas can not meet the requirement of gas transmission at the early stage of the pipeline commissioning.

但输气管道投产前存在于管道内壁和管道低洼处的液态水对天然气有增湿作用，导致天然气露点在输气管道投产初期不能满足管输要求。

Their results were compared with the values of ring gas sparger. Both KLα and Eo2 of two micro-orifice spargers were higher than those of ring gas sparger. The new gas spargers had superior mass transfer and mixing performance. It is beneficial to increasing oxygen concentration in non-Newtonian fluid.

结果表明：在相同条件下，微孔型气体分布器条件下所得KLα和Eo2均高于环状气体分布器的对应值，可以取得较好的传质混合效果，有利于提高非牛顿流体中的溶氧水平。

The effects of impeller types, baffles, gas sparger, rotational speed, gas volumetric flow rate and particle fraction on mixing time were systematically investigated in three-phase gas-liquid- floating particle systems by measuring the temperature difference using thermocouples.

在釜径386mm的搅拌釜内，采用热电偶温差法考察了搅拌桨型、挡板、气体分布器等结构因素和转速、气量、颗粒分率等操作因素对自浮颗粒三相搅拌混合的液相混合时间的影响。

I factory is specializing in the production of gas spring products manufacturers, has a group of professional and technical production and development of new product team; and has inflatable multi-function machines, automatic TIG welding machine, micro-pneumatic control of the welding machine, micro-control number of significant gas spring testing machine, micro-manage a number of significant gas spring gun machines, electronic universal testing machine, such as specialized production equipment, advanced testing equipment and products.

我厂是专业生产气弹簧系列产品的厂家，拥有一批专业技术生产和研发新产品的队伍；并拥有多功能充气机、自动氩弧焊焊接机、微控气动对焊机、微控数显气弹簧试验机、微控数显气弹簧测速机、电子式万能材料试验机等先进的专业化生产设备和产品检测设备。

China Branch Shenwei developed out of the latest generation of HK series of plant gas furnace, by the barrel, purification equipment, pipes, stove and other components, plant fuel through the system of gas furnace, in a confined hypoxic conditions, the use of pyrolysis pyrolytic chemical oxidation reaction to produce a combustible gas, in support of nitrogen and oxygen the burning of the combustion to achieve the desired effect.

武汉华科神威科技发展有限公司研制开发出的最新一代HK系列植物燃气炉，由料筒、净化装置、管道、灶头等部分组成，植物燃料通过制气炉，在密闭缺氧的条件下，采用干馏热解化学氧化反应后产生一种可燃性气体，在氮气的支持和氧气的助燃达到理想的燃烧效果。

Based on the gas heat transfer theory, a kind of gas heat transfer strengthener is developed to solve the low efficiency of the boiler heat transfer on the gas side.

针对目前锅炉内烟气侧换热效率低的问题，基于气体传热原理的分析，开发了一类气侧传热强化器。

As an important part of gas resource and an important source of sulfur, the sulfurous gas has a great amount of global resources and distributes in a wide range, mainly in large oil and gas fields of North America, Europe, the former Soviet Union, the Middle East, Asia and other regions.

含硫化氢天然气是天然气资源的重要组成部分，也是硫磺的重要来源之一，其全球资源量巨大，分布范围广泛。高含硫化氢天然气主要分布在北美洲、欧洲、前苏联、中东、亚洲等地区的大型油气田中。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新