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有效孔径 yǒuxiào kǒngjìng
bridg.constr. usable aperture; effective opening
desert. working aperture
eng.geol. effective opening size
hydroel.st. effective aperture
tech. effective pore radius; efficacious opening; useful aperture
telecom. real aperture
有效实际孔径
archit. real aperture
有效孔径口径 yǒuxiào kǒngjìng
archit. effective aperture
有效孔径
: 9 phrases in 5 subjects
Air defense1
Engineering geology2
Space2
Technology3
Telecommunications1