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| 91. | rubber oil plug |
| 橡胶油塞 |
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| 92. | spark plug engine |
| 火花塞发火发动机 |
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| 93. | spark plug insulator |
| 火花塞绝缘体 |
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| 94. | plug and abandoned |
| 堵塞并弃井 |
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| 95. | casing float plug |
| 套管浮塞 |
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| 96. | shrouded sparking plug |
| 有罩火花塞 |
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| 97. | flush plug receptacle |
| 埋装式插座 |
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| 98. | axial plug pump |
| 轴向柱塞泵 |
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| 99. | safety plug socket |
| 安全塞座 |
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| 100. | plug and socket |
| 插头和插座 |
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