自2003年以来，该区为它的城市街头治安成立了13名女子组成的城管队伍，其目的是给硬性的治安部门带来更加柔和与女性化的一面。

Since 2003, the district has supplemented its urban street police with 13 women. The idea is to give the rough-hewn force a softer, feminine side.

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结果表明，矿渣本身具有较高的自硬性；

Results show that slag itself has some hydraulic activity;

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