<span><span style、" font-family: 宋体;">避免夏季施工</span></span>
<span><span style、" font-family: 宋体;">采用二次投料和二次振捣</span></span>
<span><span style、" font-family: 宋体;">合理选择浇筑方案</span></span>
<span><span style、" font-family: 宋体;">控制出机和浇筑温度</span></span>
<span><span style、" font-family: 宋体;">预埋冷却水管</span></span>