Such as a tunnel, traffic complex area, metro stat ion, high ceilings plant, hazardous area lighting, hall, sports grounds and so on.
如隧道、交通复杂地带、地铁站、天花板很高的厂房、危险地域照明、大厅、运动场等。
Such as a tunnel, traffic complex area, metro stat ion, high ceilings plant, hazardous area lighting, hall, sports grounds and so on.
如隧道、交通复杂地带、地铁站、天花板很高的厂房、危险地域照明、大厅、运动场等。
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