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| 81. | filling screw for lube oil |
| 加油螺盖 |
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| 82. | nichrome wire coi |
| 镍铬丝螺管 |
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| 83. | Edison scrweholder |
| 螺口插座 |
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| 84. | contrarotating rotors |
| 对转螺桨 |
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| 85. | intramolluscan phase |
| 螺内发育期 |
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| 86. | flexible stay bolt |
| 伸缩撑螺 |
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| 87. | spiro - compound |
| 螺环化合物 |
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| 88. | coil spring relay |
| 螺簧继电器 |
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| 89. | hexagonal socket head plug |
| 内六角螺塞 |
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| 90. | cylinder pet cock |
| 汽缸螺塞 |
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