本文针对城市环境的特点，并根据液化石油气设备现有技术状况，提出相应的消防安全对策。
In the light of the characteristics of the city, and based on the present technical conditions of the LPG equipment, the paper gives the corresponding fire safety countermeasures.
从分析我国现有公路状况入手，对公路改造的主要内容进行了介绍，并提出了测量技术在公路改造中的具体应用。
Analysis is made on the present situation of the highway construction, and discussed the rebuilding objects by providing the application of the measuring techniques.
从我国陆上油田污水的两个特殊性出发，对现有的处理技术状况进行了分析与评价。
According to two particularities of onshore oilfield waste water in our nation, this paper analyze and evaluate the treatment techniques.
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