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| 31. | thread grinding |
| 螺纹磨削 |
|
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| | |
| 32. | square thread |
| 方螺纹 |
|
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| | |
| 33. | bast thread |
| 麻线 |
|
|
| | |
| 34. | thread polishing |
| 纱线抛光 |
|
|
| | |
| 35. | effective thread |
| 有效螺纹 |
|
|
| | |
| 36. | thread engagement |
| 螺纹啮合 |
|
|
| | |
| 37. | straight thread |
| 直螺纹 |
|
|
| | |
| 38. | thread indicator |
| 螺纹指示器|螺距仪 |
|
|
| | |
| 39. | medicated thread |
| 药捻子 |
|
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| | |
| 40. | quadruple thread |
| 四线螺纹 |
|
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