商品气

实验评价了几种商品气相缓蚀剂和一种自制缓蚀剂对碳钢、铝、铜、黄铜等在海洋大气环境中的缓蚀性能。

Several commercial and one prepared in laboratory inhibitors against corrosion in ocean atmosphere of carbon steel , aluminum , copper and brass are investigated experimentally .

因此当天然气中酸性组分含量超过商品气质量指标或管输要求时，必须采用合适的方法将其脱除至允许值内。

Therefore , when the acid contents exceed products quality index or pipeline requirements , appropriate methods must be used to remove them into allowable value range .

车用压缩天然气（CNG）能否达到汽车使用要求，在天然气硫含量、热值等符合商品天然气规定指标的前提下，关键在于脱水。

The key that whether the compressed natural gas ( CNG ) used as vehicle fuel could meet the requirements of a vehicle in use is dehydration on the promise that sulfur content and heating value of the natural gas accord with the set indexes of commercial natural gas .

对修订商品天然气国家标准的认识与建议

Understanding of and Suggestions for Revising the National Standard for Commercial Gas

我国商品天然气采用热值计量的必要性与可能性

Necessity and possibility of adopting caloricity to gage commercial gas in China

书籍是一种承载文化与信息的特殊商品，书卷气与文化意蕴是书籍的特质。

The book is a special Commodity which bears Culture and Information . The beauty of books and the cultural connotations are the characters of books .

作为一种竞争性商品，天然气必然与其它能源商品竞争，天然气价格的形成同样遵循供求规律与均衡价格的规律。

As a competitive commodity , gas has to compete against other energy commodities , resulting in gas prices being determined by the law of supply and demand , and of price equilibrium .

本文的主要研究内容为：第一部分：基于商品化的分析气相色谱仪，改装出一台制备GC仪。

The main content of this paper summarized as follows : First part : A preparative GC was modified on a commercial analytical GC .

商品参贮藏技术研究&第Ⅲ报商品参气调贮藏技术研究

Studies on Techniques of storing Commercial Ginseng Paper three Study on the Storing Method & Air-Adjustment