In fact, we are hard pressed for a good working definition for life in the cosmic context.
实际上，我们正在做一项艰苦的工作——给宇宙生命下一个定义。
Lyubomirsky's working definition of happiness — "a joyful, contented life" — gets at both the feelings and judgments necessary for overall happiness.
柳波默斯基给幸福下了一个实用的定义，认为幸福就是指快乐而又满足的人生。有了这个定义，就可以给总体幸福提供必要的感觉和判断依据。
There is a rich body of academic literature in this field (see Resources), but a useful working definition is straightforward. Finite state machines are computer programs that consist of
此领域已出现了大量学术著作（参见参考资料），而有限状态机的实用定义却十分简单明了。
A working definition might be "the art, science and technologies related to the management of geographically-referenced information."
一个工作定义可能是“与地理参照信息管理有关的艺术，科学和技术。”
Introduce the working definition of virtual reality, and two typical methods to realize virtual reality on WWW (world wide web) are given-VRML and image-based virtual panorama.
介绍了虚拟现实的工作定义，给出了使虚拟现实技术能在网络上应用的两种技术—VRML和虚拟全景。
Introduce the working definition of virtual reality, and two typical methods to realize virtual reality on WWW (world wide web) are given-VRML and image-based virtual panorama.
介绍了虚拟现实的工作定义，给出了使虚拟现实技术能在网络上应用的两种技术—VRML和虚拟全景。
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