当提起坍落度筒时，混凝土出现了垂直方向的塌落，称之为混凝土的“坍落度”。
The vertical subsidence of the concrete that occurs, when the slump cone is raised, is termed the 'slump' of the concrete.
当提起坍落度筒时，混凝土出现了垂直方向的塌落，称之为混凝土的“坍落度”。
The vertical subsidence of the concrete that occurs, when the slump cone is raised, is termed the 'slump' of the concrete.
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