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| 41. | An outside agent exerts a force P of sufficient magnitude causes to spring to stretch. |
| 施足够大的外力P，使弹簧拉长。 |
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| 42. | cause(sth)to move sharply or quickly,often by force |
| 使（某物）猛然或迅速移动（常指靠外力） |
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| 43. | The velocity of the center of mass is constant in the absence of external forces. |
| 在无外力时，质心的速度是常量。 |
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| 44. | For laying in doors, in tunnels, in cable trench or direct in ground, able to bear external mechanical |
| 室内、隧道、电缆沟内或埋地等能承受机械外力的场所，但不能承受大的拉力。 |
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| 45. | "force" (6) A number of them forced their Way into the office of the Vice-Chancellor. |
| “force”(6)他们中的一些人强行闯入副校长的办公室。 |
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| 46. | For laying indoors、in tunnel, cable trench, or direct in ground, able to bear external mechanical forces |
| 室内、隧道、电缆沟内或埋地敷设等，能承受一定的机械外力，但不能承受大的拉力。 |
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| 47. | Wound (or trauma ):Break in any Body tissue due to external action (including surgery). |
| 创伤:由外力(包括手术)引起的身体组织破裂。 |
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| 48. | The second law says that when an outside force acts on an object, |
| 第二定律指出，当一个外力作用于一个物体时， |
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| -- 来源 -- 综合英语第3册 - Unit 7 Famous Scientists Text A |
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| 49. | Because gravity in these systems is not a fixed external force but a product of the stars themselves, |
| 在这些系统中，重力并非恒定不变的外力，而是恒星自身的产物，波动可自我强化。 |
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| 50. | For laying indoors, in tunnel, in cable trench or direct in ground, able to bear external mechanical |
| 室内、隧道、电缆沟内或埋地敷设等，能承受一定的机械外力，但不能承受大的拉力。 |
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