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A quantitative structure-property relationship (QSPR) model based on artificial neural networks was established to predict the flash points of fatty alcohols.
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摘要建立了一个基于人工神经网络方法的定量结构－性质相关性(QSPR)研究模型，用于预测脂肪醉闪点。 |
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A quantity assumed to have a fixed value in a specified mathematical context.
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恒量在一个具体数学问题里被假设具有固定值的一个量 |
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A quantity of unknown numerical value.
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未知数数值不明的一个数量 |
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A quantity that has a limit or boundary.
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一种有极限或界限的量值。 |
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A quantum number, either+1(even) or-1(odd), that mathematically describes this property.
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量子数的均衡从数学含义来描述对称性的量子数＋1（偶）或－1（奇） |
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A quantum operator algebraic theory is proposed first to suit the character of the hydrogen atom.
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首次建立适合氢原子特性的量子算符代数理论。 |
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A quantum theory of gravity is a holy grail for a certain breed of physicist because all physics except for gravity is well described by quantum laws.
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对于钻研某些研究的物理学家而言，量子重力论是最后的圣杯，因为除了重力之外，其它的物理都可以用量子定律来描述。 |
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A quantum theory of gravity is needed.
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这时候你需要量子重力理论才行。 |
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A quantum tunnel transport takes .26 seconds.
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通过量子通道传送只花费了26秒就到达了。 |
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A quarrelsome man has no good neighbors.
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好争吵者无好邻居。 |
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A quarrelsome man has no good neighbours.
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好争吵者无好邻居。 |
