选择合适的材料和施工工艺，可有效地降低干喷纤维混凝土的回弹率。
It is also concluded that the rebound rate of dry-sprayed fiber concrete can be reduced obviously by adoption of rational materials and techniques.
传统的干喷工艺存在粉尘大、回弹高、混凝土质量不稳定等缺陷。
There exist defects in respect of big dust, high rebound, and unstable concrete quality etc. in the traditional dry shotcrete.
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