sand-gravel surface 中文意思是什麼
sand-gravel surface
解釋
砂石路面-
The region and the earth surface across this road are mainly water above ground and run - off and the ground water is mostly made up of groundwater and perched water ; the river bed is more obvious ; the overbank is covered by medium sand and gravel ect
路線所經地帶地面主要為地表水和徑流,地下水主要以潛水和上層滯水為主,河床較明顯,河灘覆蓋中砂、礫石等。地勢低洼地帶地表常年積水,影響路基穩定。 -
Along the coast distribution from the accumulation of loose sand or gravel from the flat surface
沿海岸分佈,由鬆散泥沙或礫石堆積而成的平緩地面。
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