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71. | recoil type reflux valve |
| 回弹式逆流阀 |
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72. | shock absorber recoil spring |
| 减震器反冲阀弹簧 |
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73. | variable recoil control rod |
| 节制杆 |
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74. | lung elastic recoil pressure |
| 肺弹性回缩压 |
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75. | recoil proton scintillation counter |
| 反冲质子闪烁计数器 |
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76. | recoil type check valve |
| 回弹式止回阀 |
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77. | shock absorber recoil valve |
| 减震器回跳阀 |
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78. | automatic recoil steel tape |
| 自卷钢皮尺 |
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79. | recoil particle counter tube |
| 反冲粒子计数管 |
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80. | method of nuclear recoil |
| 核反冲法 |
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