The main technological characteristic is to prevent from contacting with air during the process of makingpowder.
其工艺特征主要是制粉过程与空气避免接触。
2
In makingpowder pearl workshops, workers directly turned over powder with their hands by adding a little water so that powder will be rolled to some little powder pearls.
在制火药珠的车间，工人们直接用手边加水边翻火药以使火药粉变成一个个的小珠。
3
In the case of painting, finishing, and sealing applications, these particles lead to fisheyes in the finish, makingpowder free gloves the better choice for these applications.