The main technological characteristic is to prevent from contacting with air during the process of making powder.

其工艺特征主要是制粉过程与空气避免接触。

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In making powder 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。

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In the case of painting, finishing, and sealing applications, these particles lead to fisheyes in the finish, making powder free gloves the better choice for these applications.

在漆油漆、整理和密封应用的情况下，这些粒子会形成鱼眼（即一种缩孔）。 这就使得无粉手套成了这些应用的更好选择。

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Early forms of teeth whitening include using the herb elecampane (Inula helenium) to scrub the teeth and taking sage leaves and making a powder of them and salt.

BBC: Medieval teeth 'better than Baldrick's'

Missionaries came with guns (and powder), making them an invaluable defence, and with medicine.

BBC: Sechele and Livingstone

Eye-popping motifs like chevron and brocade are especially statement-making in small confines such as powder rooms, while neutral varieties remain ideal for interstitial spaces.

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