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 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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The method making powder by mechanical alloying is brought forward. Getting CuCr alloy by explosive sintering and thermal diffusion disposal are studied some primary experiments were done.

提出了采用机械合金化制粉，进而进行爆炸烧结和后续热扩散处理的制取铜铬合金的方法，并初步进行了实验研究。

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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'

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.

WSJ: Go Supernatural With New Grasscloth Wallpapers | Off Duty Spring 50

In a domestic-science class, three boys are making a presentation for a new washing-powder advertisement.

ECONOMIST: Japan