formaldehyde free

• 游离甲醛

formaldehyde free的用法和样例：

例句

1. A preparation method of urea-formaldehyde resin adhesive with low free formaldehyde content and high adhesive strength was presented.
   介绍了含游离甲醛低的粘结强度大的建筑行业用脲醛树脂粘合剂的制备方法。