“magnetic inspection powder”的概念、定义、翻译、参考文献-科学参考

单词	magnetic inspection powder
释义	magnetic inspection powder [mag`ned·ik in`spek·shǝn ´pau̇d·ǝr] ^METALLURGY A dry powder containing ferromagnetic particles colored gray, black, or red for contrast, designed to be dusted on metal parts being inspected by a magnetic inspection machine; the ferrous powder accumulates in any surface cracks (flaws) by magnetic attraction, thereby permitting the cracks to be readily discerned; if the ferrous particles are fluorescent, surface cracks will be brilliantly illuminated under black light.
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