• 研究了水溶性壳聚糖作为工业废水印染废水、食品废水、洗瓶废水等处理效果

    This article studied the production technology of soluble chitosan and its treatment effect to industrial wastewater as a kind of flocculants.

    youdao

  • 趁着,送给你柔软调理免费赠送这种毛衣特制的。

    Before I forget, here is a bottle of complimentary wool softening conditioner. It's specially made for washing the sweater of this kind.

    youdao

  • 准备2-3个1磅左右容量玻璃盖子,放到加了少许温水干净透彻后,用热开水浸泡冲晾干

    Prepare2 or31 lb-jars and lids by washing well in warm soapy water and rinsing thoroughly. Bath them in a pan of boiling water for a while. Dry the jars.

    youdao

  • 准备2-3个1磅左右容量玻璃盖子,放到加了少许温水干净透彻后,用热开水浸泡冲晾干

    Prepare2 or31 lb-jars and lids by washing well in warm soapy water and rinsing thoroughly. Bath them in a pan of boiling water for a while. Dry the jars.

    youdao

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