圆周
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5种实用方法轻松测量圆周长,一看就会!
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鍢匡紒浣犳槸涓嶆槸涔熼亣鍒拌繃杩欐牱鐨勯棶棰樷€斺€旀墜閲屾嬁鐫€涓渾婧滄簻鐨勪笢瑗匡紝鎯抽噺瀹冪殑鍛ㄩ暱鍗翠笉鐭ラ亾浠庡摢涓嬫墜锛熷埆鎱岋紒浠婂ぉ鍜变滑灏辩敤鈥?strong>鈥?绉嶆帴鍦版皵鐨勬柟娉曗€?/strong>鈥嬶紝鎵嬫妸鎵嬫暀浣犳悶瀹氬渾鍛ㄩ暱娴嬮噺锛岃繛鏁板灏忕櫧閮借兘瀛︿細锛?/p>鏂规硶涓€锛氱粫缁虫硶锛屼竴鏍圭怀?...