A kind of red chalk used by carpenters for marking timber.
| 单词 | θ212488 |
| 释义 | society > occupation and work > equipment > marking tools > [noun] > others (3) arcanna1753 A kind of red chalk used by carpenters for marking timber. plug1839 In various technical contexts. A soft steel cylinder on the end of which a die or stamp may be impressed by a punch. Obsolete. penetrant1930 Materials Science. A coloured or fluorescent liquid used to penetrate cracks, pores, and other surface defects to facilitate their detection… |
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