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natural gas standard
相关语句
  天然气标准
     At present,the natural gas standard orifice plate adoped on the spot is the flowing measuring system with primary monitoring unit which is made by two main kinds of mechanical and electro element combination patterns.
     当前,现场采用的天然气标准孔板为一次检测装置的流量测量系统,其主要为机械式和电动单元组合式仪表流量测量系统两种类型。
短句来源
  天然气专业标准
     PRESENT SITUATION AND FUTURE DEVELOPMENT OF NATURAL GAS STANDARD SYSTEM IN CHINA
     我国天然气专业标准体系的现状与展望
短句来源
     Combined with the development present situation of natural gas standard system in China,some suggestions on strengthe ning the conversion of natural gas standard system and technology progress are g iven.
     结合我国天然气专业标准体系的发展现状 ,作者就加强标准的转化工作及技术进步 ,提出了建议
短句来源
     The development process , present situation and characteristics of natural gas standard system in China are briefly introduced in this paper.
     扼要介绍了我国天然气专业标准体系的发展概况 ,以及现有体系的主要特点。
短句来源
  “natural gas standard”译为未确定词的双语例句
     If there is too much inert gases or the fuel whose heat value too lower (but it still accords with natural gas standard for vehicle) , the power performance and exhaust emission characteristic were markedly influenced synchronously.
     但如果天然气中含有过多的低热值燃料或惰性气体(但仍符合我国的天然气成分标准),则同时对动力性和排放特性产生明显的影响。
短句来源
     According to the development movements of Natural Gas Technique Committee of International Standardization Organization (ISO/TC 193), and combined with the facts of rapid development of natural gas industry of China in recent years, it is necessary and essential that the present natural gas standard system should be revised in order to meet the development of natural gas industry . And also the propsals about detailed revising are put forward in this paper.
     文章指出 ,根据国际标准化组织天然气技术委员会 (ISO/TC 193)的发展动向 ,结合我国天然气工业近年来迅速发展的实际情况 ,现有标准体系有必要作进一步修订 ,以适应当前的发展态势 ,并对修订工作提出了 5点具体建议。
短句来源
  相似匹配句对
     Natural Gas Logging
     天然气录井
短句来源
     On Natural Gas's Storage
     天然气的储存
短句来源
     Natural.
     Natural(天然等同)相近。
短句来源
     INTERCHANGEABILITY OF NATURAL GAS AND ITS STANDARDIZATION
     天然气的互换性及其标准化
短句来源
     Standardization of Natural Gas Property Determination
     天然气性质测定的标准化
短句来源
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At present,the natural gas standard orifice plate adoped on the spot is the flowing measuring system with primary monitoring unit which is made by two main kinds of mechanical and electro element combination patterns.The displacement of the former is caused by the deformation of induction element,the movement of recording pen is made by the lever,and the record sheet is driven by clock installation.The flow measuring system of the latter is composed on the basis of various requirements,usually taking...

At present,the natural gas standard orifice plate adoped on the spot is the flowing measuring system with primary monitoring unit which is made by two main kinds of mechanical and electro element combination patterns.The displacement of the former is caused by the deformation of induction element,the movement of recording pen is made by the lever,and the record sheet is driven by clock installation.The flow measuring system of the latter is composed on the basis of various requirements,usually taking primary instruments as the essencial safety pressure differential gauge,pressure gauge and temperature recorder,adopting computer automatically compensating pressure amd temperature and as intelligent flowmeters of pressure,temperature and density full compensation as well as the other survey system derived from the system.The flow sheets,main structures, merits and demerits of the instruments are introduced.

当前,现场采用的天然气标准孔板为一次检测装置的流量测量系统,其主要为机械式和电动单元组合式仪表流量测量系统两种类型。前者系由感测元件因变形产生位移,通过机械杠杆放大驱动记录笔运动,记录纸则采用钟表机构驱动;后者的流量计量系统则根据不同要求进行组合,通常仪表为差压、压力、温度变送器和记录仪表,或采用计算机进行压力、温度自动补偿和进行压力、温度、密度全补偿的智能流量仪,以及由此派生的其他测量系统。同时还介绍了这些系统的仪表流程图、主要构成和优缺点。最后指出了计量仪表需要认可和定期送检。

The influence of the variation of natural gas constituent on combustion pressure,combustion temperature and the exhaust characteristic of NO,CO,CO2 were studied by useing double range model when excess air coefficient was 1. It shows that the influence of consituent variations for the dry natural gas,the natural gas with average constituent and condensation gas on power performance is not much,but exhaust emission characteristic is markedly influenced. If there is too much inert gases or the fuel whose heat...

The influence of the variation of natural gas constituent on combustion pressure,combustion temperature and the exhaust characteristic of NO,CO,CO2 were studied by useing double range model when excess air coefficient was 1. It shows that the influence of consituent variations for the dry natural gas,the natural gas with average constituent and condensation gas on power performance is not much,but exhaust emission characteristic is markedly influenced. If there is too much inert gases or the fuel whose heat value too lower (but it still accords with natural gas standard for vehicle) , the power performance and exhaust emission characteristic were markedly influenced synchronously. The calculation results were compared with the technique requirement from CNG standard for vehicle in our country. The shortness in the standard was pointed out.

根据我国天然气组分变化的情况,采用双区模型模拟计算的方法,研究了在过量空的系数为1时,天然气组分变化对火花点火式发动机燃烧压力、燃烧温度及CO_2、CO、NO排放特性的影响。计算结果表明:干天然气、具有我国平均组分的天然气和凝析气,其组分的变化对动力性影响不大,主要影响排放特性;但如果天然气中含有过多的低热值燃料或惰性气体(但仍符合我国的天然气成分标准),则同时对动力性和排放特性产生明显的影响。将计算结果与我国的汽车用压缩天然气标准中的技术要求进行了对比,指出了我国车用天然气技术标准的不足。

As a representative of PetroChina Company Limited,the auth ors took part in the 14 th Annual Conference of ISO/TC193 convened recently .According to the discussed problems on the conference by work group directly un der TC/193 and three branch committees including TC/193SC1,TC/193SC2 and TC/193S C3,the main contents are introduced.Based on the contrast of the data measured b y gas chromatography to the data on field,and the difference between the calcul ation results to physical properties using composition...

As a representative of PetroChina Company Limited,the auth ors took part in the 14 th Annual Conference of ISO/TC193 convened recently .According to the discussed problems on the conference by work group directly un der TC/193 and three branch committees including TC/193SC1,TC/193SC2 and TC/193S C3,the main contents are introduced.Based on the contrast of the data measured b y gas chromatography to the data on field,and the difference between the calcul ation results to physical properties using composition analysis data and the det ermined results with instrument,SC1 decides that two new work suggestions will b e proposed by Chinese representative group.Combined with the development present situation of natural gas standard system in China,some suggestions on strengthe ning the conversion of natural gas standard system and technology progress are g iven.

作为中国石油天然气股份有限公司的代表 ,作者参加了近期召开的ISO/TC193第 14届年会。本文分别按TC/ 193直属工作组及TC/ 193SC1、TC/ 193SC2、TC/ 193SC3三个分委员会在年会上所讨论的问题 ,介绍了会议的主要情况。在本届年会上 ,对气相色谱仪的实验室测定与现场测定的对比和由组成分析数据计算物性与仪器直接测定结果的差异问题 ,SC1决定请中国代表团提出二份新工作建议。结合我国天然气专业标准体系的发展现状 ,作者就加强标准的转化工作及技术进步 ,提出了建议

 
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