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| 71. | coal burning boiler |
| 煤锅炉 |
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| 72. | straight top boiler |
| 平顶锅炉 |
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| 73. | KEEP AWAY FROM BOILER or STOW AWAY FROM BOILER |
| 远离锅炉 |
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| 74. | drinking water boiler |
| 开水锅炉 |
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| 75. | superpressure boiler |
| 超高压锅炉 |
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| 76. | elephant boiler |
| 象形锅炉 |
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| 77. | a battery of boilers |
| 一组锅炉 |
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| 78. | dowtherm boiler |
| 热传导锅炉 |
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| 79. | boiler automatic control |
| 锅炉自动控制 |
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| 80. | pressure boiler |
| 加压锅炉 |
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