求翻译：对于粗糙混凝土表面，强度较低的混凝土表面或需要防止油污的混凝土地面，可以在施工第一次渗透的基础上施工第二遍混凝土液体密封硬化剂；施工时需待第一遍混凝土液体密封硬化剂施工完成2小时后进行，第二遍混凝土液体密封硬化剂材料的施工方法和第一遍施工方法一致，并保证材料粘稠时开始清除，防止局部区域因材料渗透时间过长形成粘膜。是什么意思？

For rough concrete surface, the lower strength concrete surface or the need to prevent the the greasy concrete floor construction on the basis of the construction of the first penetration the second pass the concrete liquid seal hardener; construction needed to be the first pass concrete liquid seal

正在翻译，请等待...

正在翻译，请等待...

For rough concrete surface, strength lower of concrete surface or needs prevent oil of concrete ground, can in construction first times penetration of based Shang construction second again concrete liquid sealed hardening agent; construction Shi needed pending first again concrete liquid sealed hard

正在翻译，请等待...