The research shows that the precious metals can be recovered from the catalyst by the wet leaching method and the fire concentration method.
研究表明,从催化剂中回收贵金属,可采用湿法浸出法和火法富集;
A strainer full of noodles, fresh off an open fire, commands the total concentration of a cook in Bangkok's Chinatown.
劲道十足的面条刚从热腾腾的锅中挑出来,这一切都在曼谷唐人街的厨师掌握之中。
It is important to note that fire chemistry starts to change when the concentration of oxygen increases to as little as 23%.
当氧浓度增加到仅仅23%,起火的化学性质就开始变化,注意到这一点是很重要的。
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