execrable

There is 960,000 ha salt-alkali land in JILIN province. Execrable entironment affects badly local people life and economy development, especially the western regional zoology construction is a keystone to Jilin zoology province, is also a difficulty to renew and construct the entironment.

吉林省盐碱地面积达96万多公顷，恶劣的生态环境严重地影响当地的经济发展和人民生活，特别是西部地区生态建设是吉林生态省建设的重点，也是生态环境恢复和建设的难点。

This paper researches the execrable wear environments in grinding mills using in metal mines, and investigates the resistance wear behavior which is deposited in reified wear environments, in order to research the resistance wear behavior of materials by the viewpoint of systems analysis primarily.

本文针对金属矿山上使用的球磨机中恶劣磨损工况进行研究，将材料的耐磨性能放在具体的磨损工况中进行研究，用系统分析的观点来研究材料的耐磨性。

The wind turbines operate in execrable environment, in which wind is transient and variable. The wind turbine is a complicated nonlinear uncertain system. So the modeling and analysis of system is crucial to the system design of wind turbines.

由于所受工况瞬态多变且工作环境恶劣，所以风力发电机组是一个复杂、多变量、非线性的不确定系统，因此，系统建模分析是风力发电机系统设计的关键。