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分析了锚喷支护喷射材料消耗量的组成，指出了《手册》中计算公式的不足，给出了修改后的推荐计算公式，方便了现场应用。
The composition of spray material consumption of anchor spray support is analyzed. The shortage of calculation formula in “Manual” is pointed out. The modified calculation formula is given, which is convenient for on - site application.