因為我做緊實驗, 希望有人可以解答到我!
圖片參考:http://i.discuss.com.hk/d/images/smilies/default/smile_40.gif
但前題係, 當時既氣溫係大約-10度左右
除左加盬之外, 仲會有咩其他既方法?
or有咩方法會比加盬更有效用! 但係唔洗好大既開支就用到~
急要, 希望有人幫到我
圖片參考:http://i.discuss.com.hk/d/images/smilies/default/smile_40.gif
更新1:
但係個水晶球表面都唔會破裂!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!