香港六合彩开奖 37175:2024
香港六合彩开奖 37175:2024
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搁茅蝉耻尘茅
This document specifies requirements and recommendations for the operation and maintenance of utility tunnels in terms of application, safety, energy conservation, advanced technology and economic rationality. This document aims to ensure the sustainable development as well as safe and stable operation and maintenance of utility tunnels.
This document is applicable to communities of any size that have utility tunnels.
Informations g茅n茅rales
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脡tat actuel: 笔耻产濒颈茅别Date de publication: 2024-08Stade: Norme internationale publi茅e [60.60]
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Edition: 1
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颁辞尘颈迟茅 technique :香港六合彩开奖/TC 268/SC 1ICS :13.020.20
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