釋義
純：純粹；青：藍色的；純青：爐火的溫度達到最高點。相傳道家煉丹；到爐子裡的火焰從紅色轉成純青色的時候；就算成功了。比喻功夫造詣已達到了精湛、純熟、完美的地步。
用法
主謂式；作謂語、定語、狀語；指學問、技術等。
出處
唐·孫思邈《四言詩》：“洪爐烈火，洪焰翕赫；煙示及黔，焰不假碧。”
例句
到了現在，可已到了爐火純青的氣候，正是弟兄們各顯身手的時期。清·曾樸《孽海花》第二十五回
他的手腕，他的機智，已到了‘爐火純青’的程度。洪深《五奎橋》第一幕
有的人技術純熟，像袁廷發那算到了爐火純青。艾蕪《百煉成鋼》十三
英文用法
簡明釋義
perfection in one's studies；come to a head；got exactly the results desired；high degree of professional proficiency；
例句
多勃雷甯機敏而又訓練有素，态度溫和而行動謹慎，他以爐火純青的技巧往來于華盛頓的上層社會。
Subtle and disciplined, warm in his demeanor while wary in his conduct, dobrynin moved through the upper echelons ofwashington with consummate skill.
而這個能量庫所能起到的作用是對藝術運用到爐火純青的程度，這個是相輔相成的過程。
But the function of energy storeroom is that they use art proficiently and this is process complement each other.
後來又将油彩加入内畫技法，打破了傳統單一的水彩作畫的局限，使内畫的圖、形、神達到爐火純青的地步，被稱為“中西合璧”的壯舉。
Oil will join later in the painting techniques, a single break of the traditional limitations of watercolor painting, the paintingplans, shape, god reached luhuochunjing stage, called the "chinese and western" feat.
這裡，荟萃了世界上最好的制作大師，把意大利美食演繹的爐火純青，别具一格。
Here, gather together the best masters in the world, make the italy cate reach a high degree of excellence and distinctive.
以其畫風發展來看，早年筆墨較清新整饬，中年以後漸趨雄肆，晚年則爐火純青，真率自然，不假修飾。
Perspective of the development of its style, early ink cleaner straighten out, middle age, becoming male iv is reached apinnacle in his later years, straightforward nature, not in the modification.
