指出PV C U异型材变色是在高温、潮湿的条件下因霉菌侵蚀所致，油污和紫外线会促进霉变使PV C U异型材变色更加严重。
Under hot and wet condition, the mildew corrosion results in the color-changing of PVC-U profile, and oil stains and UV rays can accelerate mildew reaction which will aggravate color-changing.
为有效防止霉菌和变色菌的侵害，采用TBQ木材防腐剂对其进行防霉、防变色处理试验。
Since Mongolian Scotch Pine is easily infected by mold and sapstain fungi, a preservative, TBQ, was prepared following development of the treating equipment by the authors.
为有效防止霉菌和变色菌的侵害，采用TBQ木材防腐剂对其进行防霉、防变色处理试验。
Since Mongolian Scotch Pine is easily infected by mold and sapstain fungi, a preservative, TBQ, was prepared following development of the treating equipment by the authors.
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