å ã®å°çé£é¦ãã¥ã¼ã¹ @HRenpou ã¢ããªã«ã»ã¿ã³ã¶ãã¢ã§ã人ã ãä¸æã«åæç¶ã®ç©´ãæããã¨ã§ç æ¼ ãèåã«å¤ããï¼ æã£ãç©´ã«ããããªé¨æ°´ãæµãè¾¼ããã¨ã§ç¨®åãçºè½ããã®ã ãããã°ã§ããï¼ pic.twitter.com/Zs89SoNoXx ãªã³ã¯ Wikipedia Semicircular bund A semi-circular bund (also known as a demi-lune or half-moon) is a rainwater harvesting technique consisting in digging semilunar holes in the ground with the opening perpendicular to the flow of water.These holes are oriented against the slope
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