ćșéĄ:Kelvin.ăă
()
èžèœäșșă«æŠćšăæăăăăšăăăȘäžèšăćșă
è©łçŽ°ăăŒăž(12)ăăăăŻăă©ăăăȘăăăȘăïŒ
ćă«ăăăăă ăăȘăăŠçĄăăăăźăă±ă§ăăăăăăŻăă©ăăăȘăăăȘăïŒ
ćă«ăăăăă ăăȘăăŠçĄăăăăźăă±ă§ăă