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| 41. | pylon diagonal drag brace |
| 吊臂架交叉阻力支撑条 |
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| 42. | annulus drag loss |
| 环壁阻力损失 |
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| 43. | effect of atmospheric drag force |
| 大气阻力效应 |
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| 44. | Drag and haul suggest that the object is heavy and usually pulled along the ground. |
| drag 和haul指所拉者为重物,通常为在地面上移动. |
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| 45. | incidence of minimum drag |
| 最小阻力冲角 |
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| 46. | fluid drag and head loss |
| 水流阻力和水头损失 |
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| 47. | aerodynamic wave drag |
| 【航空】超音速飞机的空气震波阻力 |
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| 48. | nose-to-tail drag curve |
| 机身面积曲线，纵向阻力曲线 |
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| 49. | viscous-drag gas-density meter |
| 粘滞阻力气体密度测量器 |
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| 50. | Expand shoes until light drag is experienceThen back off adjuster screw only enough to eliminate drag |
| 涨开蹄片，直到感受一点点阻力。往回拧调整螺丝，使其刚好能抵消阻力。 |
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