virtual
virtual
[ˈvəːtjʊəl]
adjective
virtuality
[-jʊˈalɪti]
noun
语源
[ˈvəːtjʊəl]
adjective
- almost or nearly as described, but not completely or according to strict definition
实际上的；实质上的，事实上的
the virtual absence of border controls.
边境检控的实际缺失。
■(Computing)not physically existing as such but made by software to appear to do so
(计算机)虚拟的。 参见 virtual reality
a virtual computer.
虚拟计算机。
■(Optics)relating to the points at which rays would meet if produced backwards
(光学)虚的，虚拟的
■(Mechanics)relating to or denoting infinitesimal displacements of a point in a system
(机械学)虚的
■(Physics)denoting particles or interactions with extremely short lifetimes and (owing to the uncertainty principle) indefinitely great energies, postulated as intermediates in some processes
(物理)虚的
virtuality
[-jʊˈalɪti]
noun
语源
- late Middle English (also in the sense 'possessing certain virtues'): from medieval Latin virtualis, from Latin virtus 'virtue', suggested by late Latin virtuosus
考试词汇表
