- n.
焦距計(jì)[儀]。
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focometer中文什么意思
例句與用法
- Verification regulation of focometer
焦距儀檢定規(guī)程
百科釋義
A focometer is an instrument that measures refractive errors and is intended to provide rural or economically disadvantaged populations spherical eyeglass prescriptions without the need for complicated protocols, expensive equipment, or electricity. The focometer is monocular and hand-held, and is normally used in natural lighting.
詳細(xì)百科解釋