metal brush

基本解释

These gorgeous colors with enamel drawn by quill or a fine brush to the metal in a furnace firing repeatedly, until the formation of the desired color and delicate.
这些具绚烂色彩的珐琅通过鹅毛笔或极细的画笔绘制在金属上，在炉中反复焙烧，直到形成所需的细腻色泽。
Has three innovations from the drawing tool to the drawing technique and the drawing form: Metal pole-hook writing brush, greasepaint inside-bottle painting, series smoke pot.
从绘画工具到绘画技法及绘画形式有三项创新：金属杆钩毛笔、油彩内画、系列烟壶。
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The feeling of safety provided by two mighty oceans now gone, Americans no longer get on planes as if they were buses or go tee baseball games without a brush from a metal or explosives detector.
过去由于位于两大洋之间而产生的安全感现在已经不存在了。美国人无法再像以前乘公共汽车或者看棒球赛那样方便的乘坐飞机了，必须接受金属和爆炸物的探测。

Electricity, meanwhile, is delivered via a conductive brush that sweeps around a metal ring in the stationary base.
ECONOMIST: Monitor
The ex-Soviet producer of beryllium, a plant called Ulba, was trying to export that metal to the US. The sole US producer (in any volume at least) was Brush Wellman.
FORBES: Three responses to Noahpinion