acme thread
Mechanics
noun
A type of screw thread having flat apexes and valleys (as in a square thread), but with the sides of the threads inclined at an angle of 29 degrees.
Origin
Early 20th century.
| 单词 | acme thread |
| 释义 | acme threadMechanics noun A type of screw thread having flat apexes and valleys (as in a square thread), but with the sides of the threads inclined at an angle of 29 degrees. Origin |
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