常見例句Practice shows that the spatial bolted shotcrete supporting structure is of very high value and vast development foreground.實(shí)踐証明，空間網(wǎng)殼錨噴支護(hù)結(jié)搆具有很高的推廣應(yīng)用價(jià)值和廣濶的發(fā)展前景。 返回 shotcrete-boh