It can be used as cushion to enhance the load strength of groundwork.When it is laid on the slope, it can form a slope projection structure.It also can be used to build supporting structure.是什么意思_It can be used as cushion to enhance the load strength of groundwork.When it is laid on the slope, it can form a slope projection structure.It also can be used to build supporting structure.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句