For copper, she said, the LC50 (the concentration lethal to half of any given species over a certain time) decreases with temperature - meaning that toxicity increases.
她说，对于铜来说，半数致死浓度lc50(一定时间内受试动物半数死亡的毒物浓度)随温度减弱-这就意味着毒性增加。
Spells are hurled back and forth until Harry delivers a crushing blow with a devastatingly powerful and potentially lethal spell... a spell he learned from the Half-Blood Prince.
法术是投掷来回，直到哈里提供了毁灭性的打击，以毁灭性强大和可能致命的法术…拼写他从混血王子。
Spells are hurled back and forth until Harry delivers a crushing blow with a devastatingly powerful and potentially lethal spell... a spell he learned from the Half-Blood Prince.
法术是投掷来回，直到哈里提供了毁灭性的打击，以毁灭性强大和可能致命的法术…拼写他从混血王子。
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