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如何快速檢驗蛋的新鮮度?

文字:[大][中][小] 手機頁面二維碼 2017/11/25     瀏覽次數:    
  利用蛋內水分蒸發、氣室擴大、內容物重量減輕等變化,在一定濃度的鹽水溶液中觀察其沉浮情況來鑒別檢驗蛋的新鮮度。鮮蛋較重,陳蛋則較輕。

  XIANJIANGDANFANGRU100KE/SHENGDESHIYANYEZHONG,ZAIJIANGQIYIRUQITASANZHONGMIDUDESHIYANYEZHONG,GUANCHAQICHENFUQINGKUANG。ZAI100KE/SHENGSHIYANYEZHONGXIACHENDEDANWEIXINXIANDAN。YIRU110KE/SHENGSHIYANYEZHONGRENGXIACHENDEDANWEIZUIXINXIANDEDAN。ZAIMIDUWEI100KE/SHENG、110KE/SHENGDESHIYANYEZHONGXUANFU,ERZAIMIDUWEI80KE/SHENGSHIYANYEZHONGXIACHENDEDANWEICIXIANDAN。ZAI70KE/SHENGSHIYANYEZHONGXIACHENDEDANWEICIDAN,SHANGFUDEDANWEIFUBAIBIANZHIDAN。 SHENMESHITIEKEDAN,RUHEJIANBIE? TIEKEDANZHUYAOSHIZHUCUNSHIJIANGUOCHANG,DANQINGBIANXI,DANHUANGMORENLIBIANRUO,DANHUANGSHANGFUTIEYUDANKE,JUBUCHENGHONGSE。DENGGUANGTOUSHISHI,ZAITIEKECHUKEQINGXIKANDAODANHUANGCHENGHONGHESEHUOHEISE。JIANGSANGEJIDANFANGZAISHOULIQINGPENG,SIPOWACHAZISHENG,SHITIEKEDAN,KEYISHIYONG;RUDANHUANGJINTIEDANKEBUDONGDE,TIEKECHUCHENGSHENHEISEQIEYOUYIWEIDE,ZHEZHONGDANBUNENGSHIYONG。  

  SHENMESHIBAIDAN? FUHUA2~3TIANWEISHOUJINGDEDAN,CHENGZUOTOUZHAOBAIDAN。ZHEZHONGDANDEDANKEFALIANG,QIKONGDA,KONGTOUYOUHEIYING,FANGZAISHOULIGUANGHUA,ZHONGLIANGJIAOQING,KEYISHIYONG。FUHUA10TIANZUOYOUWEISHOUJINGDEDANCHENGZUOERZHAOBAIDAN,DANQINGNEIYIYOUXUESIHUOXUEKUAI。ZHEZHONGDANQUDIAOXUESIHUOXUEKUAIHOU,YEKEYISHIYONG。 MEIDANKEYISHIYONGMA? JIDANSHOUDAOCHAOSHIHUOZAOYULIN、SHUISHI,HUIBADANKEBIAOMIANDEBAOHUMOXIDIAO,XIJUNJINRUDANNEIERFAMEIBIANZHI,DANDEZHOUWEIYOUHEIBANDIAN,KEFASE。FAMEIDEDANBUNENGSHIYONG。

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