English translation for "护脚倒滤层"

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"护脚 含金砾岩层" English translation, "护脚板" English translation, "护脚层" English translation, "护脚挡" English translation, "护脚档" English translation, "护脚垫块" English translation, "护脚堆石" English translation, "护脚坑" English translation, "护脚块体" English translation, "护脚块体；坡脚砌块" English translation