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发表于 2026-5-25 08:28
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来自： 中国湖北
Searchlights
Two searchlights are to be provided on all fire fighting vessels to facilitate fire fighting operations at night.
The searchlights are to be capable of providing an effective horizontal and vertical range of coverage and are to provide an illumination to a distance of 250 m (820 ft) in clear air at a minimum level of illumination of 50 lux within an area of not less than 11 m (36 ft) diameter. |
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提升卡
变色卡
