| 单词 | tolerance unit |
| 释义 | tolerance unit [`täl·ǝ·rǝns ´yü·nǝt] DESIGN ENGINEERING A unit of length used to express the degree of tolerance allowed in fitting cylinders into cylindrical holes, equal, in micrometers, to 0.45 D1/3 + 0.001 D, where D is the cylinder diameter in millimeters. |
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