To ensure that in the initial setting of concrete before the row on the lower bond, so as to safeguard the overall strength of concrete.

保证混凝土在初凝之前，上下层的连续粘接，以保障混凝土的整体强度。

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It indicates that glucose-acid Na has plasticization to concrete and then preceeds to accelerate the setting of concrete with the increase of its doses.

研究表明葡萄糖酸钠对混凝土有明显的辅助塑化效应，且随着掺量的增加逐渐增强；

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Yet the task will be much tougher than five years ago: instead of setting goals, this time leaders must agree on concrete decisions to achieve them.

不过与五年前相比，任务将更加艰巨，这次领导人不是制订目标，而是为实现这些目标商定具体的决策。

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The presentations and discussions will focus on the concrete experience of cooperation between Israeli and Palestinian scientists, in particular on the setting up of the Israeli-Palestinian Science Organization (IPSO).

UNESCO: 's sixtieth anniversary

Despite widespread exposure to risk, relatively few respondents report board-level oversight of their water policies, strategies or plans (39%), and even fewer report setting concrete targets or goals (30%).

FORBES: How Scarce Does Water Need to Get Before It's Valuable?