bank gravel の意味「天然砂利」

意味	天然砂利自然堆積砂利 gravel occurring in a natural deposit rather than being crushed or manufactured

bank gravelのWordNet

意味	gravel as found in natural deposits 天然の堆積層に見られるままの砂利
同義語	pit-run gravel pit run
上位語	crushed rock砕石 gravel砂利