护面材料 meaning in Chinese

clad material
facing material

( 5 ) according to the calculated average section velocity . we can decide the type of the revetment . ( 6 ) when the scour hole depth of the dam head and trail parts is calculated inthe paper . we can validate whether the revetment material is strong enough to resist the degradation of the flood flow
根据以上计算所得的各断面平均流速，初步确定需要铺设的摘要护面类型计算在铺设护面以后坝首和坝末的冲坑深度，以验证护面材料是否可以抵抗洪水泄流的冲刷。
The result is basically agreed with the calculations and can verified the theory for the stability of earth - rock dams under flood discharge , in the second part of this paper , several kinds of slope - protection materials are studied . according to the material property , a type of new flexible slope - protection material applied to overflow earth - rock dams - rubber panel armoring - is presented
为了研究高土石坝在大单宽流量下的稳定性，本文第二部分主要对几种不同的土石坝护面材料进行了探讨，根据材料的特性和各自的受力特点，提出选用一种新型的柔性护面材料?橡胶板作为土石坝的防护材料。