So the main component concrete of the ship lock should have relatively high scourresistance and cracking resistance to improve the ship lock's safety and durability.
因此要求船闸主要部位混凝土应具有较高的抗冲耐磨和抗裂的性能以提高船闸的耐久性能。
2
The strong scourresistance and stability of the Banks and coming big floods always with high sediment concentration are the key fators for forming a narrow and deep channel in the lower wei River.
河岸抗冲稳定性较强，并经常出现高含沙量大洪水，是形成渭河下游窄深河槽的关键。
3
Resistance in the gas cylinder scour capability, and always maintain good thick enough oil film.