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51. | self-powered vibratory roller |
| 自行振动压路机 |
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52. | self-neutralizing mine |
| 自行失效雷 |
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53. | self-propelled heavy weapon |
| 重型自行武器 |
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54. | self-releasing type |
| 自行脱落型 |
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55. | self-propelled lighting equipment |
| 自行式照明设备 |
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56. | brake rubber for bicycles |
| 自行车闸橡胶 |
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57. | self sustaining burning |
| 自行持续燃烧 |
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58. | self-propelled fire-fighting car |
| 自行灭火车 |
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59. | self terminating oxidation |
| 自行终端氧化 |
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60. | bicycle tyre and tube |
| 自行车内外胎 |
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