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| 81. | gain [gather] momentum |
| 增加动量,增加劲头,得势 |
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| 82. | principle of conservation of momentum |
| 动量守恒定理 |
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| 83. | centre-of- momentum system |
| 动量中心系统 |
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| 84. | reduced momentum of a particle |
| 换算粒子动量 |
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| 85. | momentum transfer cross section |
| 动量转移截面 |
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| 86. | momentum jet flame |
| 动量控制射流火焰 |
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| 87. | conservation of energy and momentum |
| 能量动量守恒 |
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| 88. | momentum-type mass flowmeter |
| 动量式质量流量计 |
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| 89. | law of constant angular momentum |
| 等角动量定律 |
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| 90. | Betz momentum theory |
| 贝兹动量理论 |
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