抛石护脚
Riprap for feet
以上为机器翻译结果，长、整句建议使用 人工翻译 。
理论分析和工程实践的结果表明：杭州段仅受洪水作用的海塘，适宜用抛石护脚方案；
Theoretical analysis and engineering practice both showed: in the coast of Hangzhou city, the seawall suffered from flood only is suitable to use the riprap protection;
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