keronã®é¡ã ãããããªæ¥ã®ç©ºãã€ã¡ãŒãžããŠäœããŸããã
ã²ãããé²ãkeronã®é¡ã暪åããšããæ¬æ°ãªãã¶ã€ã³ã ãã©
ã»ã®ãŒã®ããã³ãªã§ããè¡šæ
ã«çãããŸãâ¡
ãæ°ã«å
¥ãã®å Žæã«ã¡ããããšé£Ÿã£ãŠã¿ãŠã¯âŠðž
ãã¥ã³ãšããŠé ãããããããã§ãã
倧ããã¯ç»åãåç
§ã«ããŠãã ããð
keronã®é¡ã ãããããªæ¥ã®ç©ºãã€ã¡ãŒãžããŠäœããŸããã
ã²ãããé²ãkeronã®é¡ã暪åããšããæ¬æ°ãªãã¶ã€ã³ã ãã©
ã»ã®ãŒã®ããã³ãªã§ããè¡šæ
ã«çãããŸãâ¡
ãæ°ã«å
¥ãã®å Žæã«ã¡ããããšé£Ÿã£ãŠã¿ãŠã¯âŠðž
ãã¥ã³ãšããŠé ãããããããã§ãã
倧ããã¯ç»åãåç
§ã«ããŠãã ããð
ãµã€ãº
çŽåŸ10cmã»ã©
çºéãŸã§ã®ç®å®
5æ¥
é éæ¹æ³ã»éæ
å®åœ¢ïŒå€ïŒéµäŸ¿
200åïŒè¿œå éæïŒ0åïŒ
å šåœäžåŸ
å šåœäžåŸ
è³Œå ¥ã®éã®æ³šæç¹
éµäŸ¿å±ããå®åœ¢å€éµäŸ¿ã«ãŠçºéããŠããã ããŸãð