求翻译：板材铺设24h后，应洒水养护1—2次，以补充砂浆在硬化过程中所需要的水分，保证板材与砂浆粘结牢固。养护期3d之内严禁踩踏。是什么意思？

24h after plate laying, sprinkler maintenance should be 1-2 times, to supplement the mortar in the hardening process of water needed to ensure a strong bond with the mortar board. Maintenance period within the forbidden 3d stampede.

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After the plate lays down 24h, should the water spray maintain 1-2 time, supplemented mortar the moisture content which needs in the hardening process, the guarantee plate and the mortar caking is reliable.In maintenance time 3d forbid strictlys stepping on.

Sheet after the laying of 24h, water conservation 1-2, to supplement the mortar needed moisture during the hardening process, guarantee sheet and mortar bond firm. Conservation 3D no Stampede.

24h after plate laying, sprinkler maintenance should be 1-2 times, to supplement the mortar in the hardening process of water needed to ensure a strong bond with the mortar board. Maintenance period within the forbidden 3d stampede.