在开放系统环境中，安全性是极为重要的一个方面。
Security is one of the most important components for open system environments.
提出了一个适用于开放系统环境的恶意代码防御模型。
A malicious code defending model for open system is presented.
作为一个开放系统，组织战略与环境之间的互动关系一直是组织与管理研究的核心议题之一。
As an open system, the interaction between organizational strategy and its environment has always been the core issue in organization and management field.
水电能源系统是一个典型的开放系统，与外界环境存在着频繁的物质和能量交换。
Hydropower energy system is a typical open system. There are frequent matter and energy exchange with the environment.
水电能源系统是一个典型的开放系统，与外界环境存在着频繁的物质和能量交换。
Hydropower energy system is a typical open system. There are frequent matter and energy exchange with the environment.
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