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| 31. | control valve plug |
| 控制阀塞 |
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| 32. | proportional control valve |
| 比例控制阀 |
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| 33. | power control valve |
| 动力控制阀 |
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| 34. | speed control valve |
| 速度控制阀 |
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| 35. | orifice control valve |
| 锐孔调节阀|孔板节流阀 |
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| 36. | control valve bush |
| 控制阀衬套 |
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| 37. | height control valve |
| 高度控制阀 |
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| 38. | balanced control valve |
| 平衡型调节阀 |
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| 39. | hydrant control valve |
| 消防栓控制阀；消防栓开关掣 |
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| 40. | temperature control valve |
| 温度控制活门 |
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