天然气

Compare with benzine photograph, in tail gas of natural gas car, co reduces 90% above, hc decreases about 20%, co2 decreases 24%, and do not contain sulfide basically.

和汽油相比，天然气汽车尾气中，co减少90%以上，hc减少约20%，co2减少24%，且基本不含硫化物。

No one can explain why Lloyd considered BEV "too expensive" but why the proposed 15 years of research into a new infrastructure and technology, less promising than Compressed Natural Gas, would be "practical".

没有人能够解释为什么Lloyd认为电池EV "太昂贵"，为什么反而建议用15多年的研究去进入一个全新的基础设施和技术领域，对比"实用"的压缩天然气，这更加没谱。

The article analyzes the dominant factor of gas well productivity based on absolute open flow potent and binomial deliverability equation.

结合气井绝对无阻流量定义及气井的二项式产能方程，对影响气井产能的井底污染、地层渗透率、地层压力、地层有效厚度、气井半径、泄气半径、天然气粘度、硫的沉积、气层产水等因素作了详细的分析。

Although the level of exploration and development of biogenetic gas is relatively low in China at present, it is an important alternative source of gas reserves in the future.

虽然目前我国生物气的勘探开发程度较低，但它却是未来天然气勘探的重要接替领域。

Along with energy crisis and worsened environment becoming more and more intensively, gas-vehicle receives the unprecedented recognition because of its less emissions, more economical and saving petroleum resource. The research and utilization of gas-vehicle develop quickly all over world. Of course, automotive fuel changing from gasoline and diesel into gas fuel is also carried out blazingly everywhere in our country.

中文题名燃气汽车发动机燃烧特性及工作性能研究副题名外文题名 Study on combustion characteristics and performances of automotive engine by gas fuel 论文作者詹樟松导师夏来庆教授学科专业动力机械及工程研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2001 论文页码总数132页关键词汽车发动机燃气汽车发动机燃烧馆藏号BSLW /2001 /U464 /32 随着能源危机和生态恶化日益严重，燃气（主要指压缩天然气和液化石油气）汽车以其优良的排放、良好的经济性以及能够部分替代紧张的石油资源而受到了空前重视，世界范围内燃气汽车的研究和应用也随之空前高涨。

However, due to various constraints, we would only be looking at GAs as pro blem solvers and competent machine learning here.

然而，由于各种因素的制约，我们只能寻找天然气作为亲blem解和主管机器学习这里。

In the paper,the hazard of impurity and disposal method for gas pipeline are introduced. Suggestions to improve the design,construction and management of valve chamber and blowdown system are put forward.

介绍了长输天然气管道中杂质的来源、危害及处理方法，提出了改进阀室设计、越站设计、排污系统和排污池设计以及管理的工艺方案。

The trigger mechanism of PETM remains obscure. One plausible explanation involves abrupt release of marine methane hydrate. Magma activity and bolide effect are also announced accounting for the occurrence of PETM.

对于PETM的触发机制，主流的观点认为是海底天然气水合物突然释放造成巨量甲烷迅速进入表层系统引发的碳循环系统内部反馈。

An oil and gas bonanza lies just offshore in Cambodian waters.

在柬埔寨的近海海域埋藏着丰富的石油和天然气。

It is also rich in oil, gas and other natural resources in demand by China's booming economy.

它也有丰富的石油，天然气和其他资源，满足了中国经济增长的需要。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。