查询词典 gas-mask

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。

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。

The invention belongs to the fluid measuring technical field and relates to an oil, gas and water three-phase oil well continuous gauging device, which comprises a high-efficient gas-liquid separator; the high-efficient gas-liquid separator is connected with an oil, gas and water three-phase inflowing port; a gas phase outlet of the oil, gas and water three-phase inflowing port is connected with a gas phase measuring pipeline; a gas path temperature sensor, a gas path pressure sensor and a gas path endocone flowmeter with high-frequency differential pressure transmitter are arranged on the gas phase measuring pipeline; a liquid phase outlet of the high-efficient gas-liquid separator is connected with a liquid phase measuring pipeline; a liquid path Coriolis mass flowmeter and a liquid path endocone flowmeter are arranged on the liquid phase measuring pipeline; and the cross section of the pipeline for mounting the liquid path Coriolis mass flowmeter is more than the cross section of the pipeline for mounting the liquid path endocone flowmeter.

本发明属于流体测量技术领域，涉及一种油、气、水三相油井连续计量装置，包括高效气液分离器，高效气液分离器与油、气、水三相流入口相连，其气相出口与气相测量管路相连，在气相测量管路上装有气路温度传感器、气路压力传感器、带有高频差压变送器的气路内锥流量计；高效气液分离器的液相出口与液相测量管路相连，在液相测量管路上装有液路科氏质量流量计和液路内锥流量计，安装液路科氏质量流量计的管路的截面积大于安装液路内锥流量计的管路的截面积。

The activities in different sections of the Gaoqing fault in the Huagou gas field were analyzed using 3D seismic data. The activities of the fault segment associated with the Huagou gas field were strong during the Guantao\|Minghuazhen period, while the activities on east and west sides of the gas field were weak at that time. The Huagou gas field is well corresponding to the strong activity segment of the Gaoqing fault on the plane. The process of gas migration in the Huagou reservoir is divided into two phases:(1)After mantle\|derived magmatogenetic gas including CO2, N2, and He entered the Gaoqing fault, the gas migrated to the top of the fault by the action of buoyancy or pressure, then the gravitative differentiation occurred. For the top of the fault is closed and both sides of fault is sealed, the gas assembled to some degree in the Gaoqing fault;(2)When gas was accumulated at a large scale in the Gaoqing fault, the gas migrated towards the reservoirs along the two sides of the fault and was accumulated in sandstone.

利用三维地震资料，对济阳坳陷花沟CO2气藏区高青断裂走向上不同区段的活动性进行了分析，指出：花沟CO2气藏所对应的高青断裂区段，在馆陶组—明化镇组沉积时期活动性强，而气藏的东、西两侧，馆陶组—明化镇组沉积时期断裂基本上不活动；花沟CO2气藏与馆陶组—明化镇组沉积时期高青断裂活动性强的区段在平面上有着良好的对应关系；花沟CO2气藏的运聚过程分为2个阶段，在第1阶段，幔源岩浆成因的CO2、N2和He等气体进入高青断裂后，在浮力或压差作用下向断裂顶端运移，并发生重力分异，由于断裂顶端封闭、两侧封堵，CO2、N2和He等气体在高青断裂中实现了一定程度的聚集，而在第2阶段，当CO2、N2和He等气体在断裂中聚集到一定程度，便在压力驱动下向断裂两侧砂岩储层运移，并在其中聚集成藏。

Are specializing in the design, production of industrial equipment and auxiliary gas, dissolved acetylene equipment (seamless, welding, dissolved acetylene, liquefied petroleum, natural gas and other gas cylinders) Chemical Equipment and accessories, all kinds of gas Filling Units, bus high-purity, specialty, medical gas cylinder seamless vacuum devices do bath, stainless steel PTFE metal software, bellows, industrial gas high, medium pressure valves, the fittings in the gas, industrial gases pallets, providing liquid oxygen, liquid nitrogen, liquid argon, liquefied petroleum, liquefied natural gas, two ice machines, to undertake air separation, acetylene equipment¨and renovation project as well as standard gas, mixed gases, specialty gases, high purity gases configuration and installation industry.

丹阳市荣发气体设备有限公司是专门设计，生产工业气体设备及辅机，溶解乙炔成套设备（无缝，焊接，溶解乙炔，液化石油，天然气等气瓶）化工设备及配件，各种气体充灌台，汇流排高纯，特种，医用气体无缝气瓶真空干澡装置，不锈钢四氟金属软件，波纹管，工业气体高，中压阀门，各中气体配件，工业气体集装架，提供液氧，液氮，液氩，液化石油，液化天然气，二冰机，承接空分，乙炔设备建站及改造工程以及标准气体，混合气体，特种气体，高纯气体的配置工业及装置等。

Huangqiao carbon dioxide gas field in North Jiangsu Basin have the following characteristics: deep gas fields are associated with shallow ones, marine gas fields are coupled with continental ones, and several gas reservoirs are combined. Carbon dioxide in Huangqiao area mainly comes from deep mantle, mixed with a little thermal metamorphism and a little organic carbon dioxide in shallow formation, and helium and nitrogen gas mainly come from mantle. There is a good time\|space matching relationship between carbon dioxide gas reservoirs and great rifts, magma and volcano activity, which forms the special carbon dioxide gas reservoir mode for Huangqiao. This mode has good sealing, trapping and preserving conditions, but its gas source differs from traditional hydrocarbon gas reservoirs.

苏北盆地黄桥CO2气田具有深部气田与浅部气田、海相气田与陆相气田匹配组合互成一体、多个气藏组合分布的特点，其CO2主要以深部幔源成因为主，浅层混有部分热变质成因和少量有机成因CO2，氦气和氮气主要为幔源成因，而且，黄桥地区CO2气藏的发育与深大断裂和岩浆火山活动具有很好的时空配置关系，形成了独特的&黄桥式&CO2气成藏模式，并具备良好的储盖圈保条件。

A rapid and simple method was developed for determination of aroma c omponents of apple wine by head space solide-phase microextraction coupled to capillary gas chromatography-mass spectrometry. Four paramete rs, including fiber coatings,extraction time,concentration of salt, and extraction temperature,were optimized. 2-Octanol was used as an inter nal standard for accuracy improvement.

以顶空固相微萃取法（Head Space Solid-Phase Micro-Extractions，HS-SPME）和气相色谱质谱（Gas Chromatgraphy-Mass Spectrometry，GC-MS）联用，2-辛醇为内标，研究了萃取头、萃取时间、加盐质量浓度、萃取温度对苹果酒中香气物质萃取的影响，优化了分析条件，建立了快速测定苹果酒中香气物质的方法。

The droplet transfer of twin-wire co-pool gas shielded metal arc welding process takes great effects on the behavior of the molten pool by transferring energy, momentum and fluid flow to the molten pool which will affect the weld appearance.

双丝共熔池GMAW(twin-wire co-pool gas shielded metal arc welding， TCGMAW)熔滴过渡对焊缝成形的影响体现在对熔池的作用上，熔滴对熔池的作用在于向熔池传输能量、动量和质量，最终会影响到焊缝的成形和质量。

The SD-31 is a tin dioxide semiconductor gas sensor which is 图1 Fig1 designed for breath alcohol detection. It gives high sensitivity to alcohol vapors with quickly response speed.

深圳市三达特科技有限公司 Gas Sensor for Alcohol Detection 酒精传感器 SD-31 SD-31 型酒精传感器是以二氧化锡为基本敏感材料的，专门用于呼气中酒精浓度检测的一种半导体型气体传感器。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。