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| 21. | elevator ,grain, pneumatic |
| 谷物气动升降机 |
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| 22. | elevator quadrant |
| 升降机扇形齿轮 |
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| 23. | elevator lattice |
| 升降机输送帘子 |
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| 24. | canvas sling elevator |
| 帆布带升降机 |
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| 25. | cold aggregate elevator |
| 冷集料升降机 |
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| 26. | arm conveying elevator |
| 旋臂升降机 |
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| 27. | reverse elevator pawl |
| 升降机回动爪 |
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| 28. | elevator split ring |
| 升降机开口环 |
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| 29. | vibratory spiral elevator |
| 振动螺旋升降机 |
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| 30. | ectrical lift (elevator) |
| 电力升降机;电梯 |
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