
35mm电影拷贝上光学双声迹的位置和宽度尺寸
Two-track photographic soundrecords on 35mm motion-picture prints-Positions and width dimensions
Two-track photographic soundrecords on 35mm motion-picture prints-Positions and width dimensions
Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment-Part 1:Transformers and inductors using YEI-1 laminations
Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment-Part 3:Transformers and inductors using YUI-1 laminations
Outline dimemsions of transformers and inductors for use in telecommunication and electronic equipmemt-Part2:Transformers and inductors using YEx-2 laminations for printed wiring boardmounting
Fixed capacitors for use in electronic equipment-Part 6:Sectional specification-Fixed metallized polycarbonate film dielectric d.C.capacitors
Technical furfuryl alcohol test methods
Technical furfuryl alcohol
Maleated rosin
Hydrogenated rosin
Marine acoustic and optical alarm signaller-General specification