天然气

The altiplano tundra is a potential source of the formation and preservation of nature gas hydrate.

高原冻土带是天然气水合物生成和保存的潜在源区。

This means there are unprotected aluminium surfaces, which lead to the formation of gas.

这意味着有未受保护的铝表面，而导致形成的天然气。

Fuel oil and natural gas pipe to meet the American Petroleum Institute standard API 5L.

石油天然气燃油管件满足美国石油协会标准 API 5L 。

THT has passed authentication of quality management system and product from ISO9000 and American Petroleum Institute, constructed a complete set of mature market executing system, and its products are widely applied in fields such as petroleum, natural gas, chemical industry, coal, metallurgy, medicine and storage.

公司通过了 ISO9000和美国 API 石油学会的质量管理体系和产品的认证，建立了一整套成熟的市场运营体系，产品在石油、天然气、化工、煤炭、冶金、医药、仓储等领域广泛应用。

THT has passed authentication of quality management system and product from ISO9000 and American Petroleum Institute, constructed a complete set of mature market executing system, and its products are widely applied in fields such aspetroleum, natural gas, chemical industry, coal, metallurgy, medicine and storage.

公司通过了ISO9000和美国API石油学会的质量管理体系和产品的认证，建立了一整套成熟的市场运营体系，产品在石油、天然气、化工、煤炭、冶金、医药、仓储等领域广泛应用。

In the world of synthetic ammonia production, about 80% of natural gas as raw materials.

在世界合成氨产量中，约80％以天然气为原料。

Canada is rich in natural resources, for ammonia, urea, methanol and ethylene production.

加拿大有丰富的天然气资源，用于合成氨、尿素、甲醇和乙烯的生产。

The frame and working process of biogas refining system for obtaining vehicle fuel were discussed. Among them, the main device-hollow fiber polyimide membranes separation module was devised by our special request. And the other devices for removing water vapour, sulfureted hydrogen, oxygen, ammoniate were designed by ourselves.

文中简介了沼气制取车用天然气级燃料系统的组成和工作过程，该系统以自行设计的中空纤维聚酰亚胺膜组件作为主纯化脱碳装置，并设计了脱水、脱硫、脱氧和脱氨装置。

In an official statement this week, Gazprom asked Europeans for understanding.

在本周的官方声明中，俄国天然气工业公司请求欧洲人民理解。

In this paper, based on the specific CNG engine parameters and characteristics, the influence of the injection timing, ignition energy and lean combustion for the engine is tested, in order to explore the control rules of fuel injection, ignition energy and lean combustion and then draw the following conclusions: small injection advance angle of electronic controlled injection CNG engine is optimum

文章根据天然气发动机的具体参数和特性，探索电控喷射CNG发动机在燃料喷射、点火能量和稀燃等方面的控制规律，确定最优的控制参数，开展了喷射定时、点火能量及稀薄燃料等参数对发动机性能影响的试验研究工作，并根据试验结果分析，得出了以下结论：电控喷射WT615CNG发动机燃料喷射提前角要小些为宜

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。