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| 81. | coaxial fitting |
| 同轴电缆接头 |
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| 82. | vacuum pump adapter |
| 真空泵接头 |
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| 83. | bell-and-plain end joint |
| 套管接头 |
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| 84. | slim hole joint |
| 小眼接头 |
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| 85. | a tee piece |
| 丁字接头 |
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| 86. | half-and-half joint |
| 对拼接头 |
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| 87. | grass hopper joint |
| 滑动接头 |
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| 88. | air tight joint |
| 气密接头 |
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| 89. | emergency connector |
| 应急接头 |
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| 90. | lead seal adapter |
| 铅封接头 |
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