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| 〔美国〕国家标准锥管〔螺纹〕 | |||
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| 美制标准锥管 | |||
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National Taper Pipe : 13 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Earth sciences | 1 |
| General | 2 |
| Mechanic engineering | 1 |
| Mechanics | 2 |
| Oil / petroleum | 1 |
| Technology | 1 |
|
|
| |||
| 〔美国〕国家标准锥管〔螺纹〕 | |||
| |||
| 美制标准锥管 | |||
|
National Taper Pipe : 13 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Earth sciences | 1 |
| General | 2 |
| Mechanic engineering | 1 |
| Mechanics | 2 |
| Oil / petroleum | 1 |
| Technology | 1 |