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vi.风化；开花
1、Most andesites come in grayish black and are pretty good stone materials with fine and firm texture being not easy to be effloresced.───安山岩多为灰黑色，质地细密，坚硬不易风化，是非常优良的石材。
2、After operation of ethylene cracking furnace for many years, the furnace lining was effloresced seriously. The radiating heat loss of furnace wall was larger.───乙烯裂解炉经多年运行，炉衬粉化严重，炉壁散热损失较大，热效率下降。