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用于生产铝的氧化铝 — 通过 20 微米孔径筛的颗粒的测定

Aluminium oxide used for the production of aluminium — Determination of particles passing a 20 micrometre aperture sieve

微系统生产美利体育官网首页网址 材料对光学和触觉尺寸计量影响的测定 第1部分：材料和程序特定影响的定性估计

Production equipment for microsystems - Determination of the influence of materials on the optical and tactile dimensional metrology - Part 1: Qualitative estimation of the material and procedure specific influences

土工合成材料 有效孔径的测定 干筛法

Geosynthetics - Determination of effective pore size - Dry screening method

摄影用玻璃滤光镜通用规则

General rules for glass filters for photography

照相镜头特性测量 第2部分：有效孔径和相对孔径的测量

Measurement of photographic lens characteristics - Part 2: Measurement of effective aperture and relative aperture

电影放映物镜性能测定方法

Method for determining various functions of motiaon-picture projection lenses

电影摄影物镜.第6部分：电影摄影物镜性能测定方法

Lenses for motion picture camera.Part 6:Method for determining various functions of lenses for motion picture camera

摄影镜头.有效孔径、光圈数和相对孔径的测量方法

Photographic lenses -- Methods for the measurement of the effective aperture, F-number and relative aperture

加利略望远镜 JIS B 7122-1988

Galilean Binoculars JIS B 7122 -1988

放映镜头各种功能的测量方法

Method for determining various functions of projection lenses