the area that is visible (as through an optical instrument)
例句
用作形容词 (adj.)
We present evidence that the exotropia and face turn are part of an adaptive mechanism to increase the useful visual field. 本研究所提供的证据说明外斜视和侧脸是患者为增加有效视野的一种适应性机制。
Andrew, with binoculars, was already scanning the dockside and port buildings coming into view. 安德鲁举起了望远镜,扫视着进入视野的码头和港口上的建筑物。