| 单词 | test-plate |
| 释义 | > as lemmastest-plate Categories » test-plate n. (a) a glass plate ruled with very fine lines, used in testing the power of microscope objectives (E. H. Knight Pract. Dict. Mech. 1877); (b) a piece of pottery on which colours are tried before being used on the pieces to be decorated ( Cent. Dict. 1891); (c) a slip of glass used in mixing test-solutions (Knight). < as lemmas |
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