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51. | rear wheel drive vehicle |
| 后轮推动的车辆 |
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52. | front wheel drive vehicle |
| 前轮推动的车辆 |
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53. | manually driven amusement device |
| 人力推动娱乐装置 |
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54. | self-propelled vessel |
| 自行推动的船只 |
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55. | propulsion system |
| 推动系统;推进系统 |
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56. | IETF: Internet Engineering Task Force |
| 因特网工程作业推动 |
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57. | theory of cost-push inflation |
| 成本推动通货膨胀论 |
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58. | waterjet catamaran |
| 喷水推动的双体船 |
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59. | power-driven lifting appliance |
| 动力推动式起重机械 |
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60. | A sailing boat is propelled by wind. |
| 风推动着帆船。 |
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