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- The reduced density of the bird skeleton provided a light but strong frame. 骨骼密度的降低使得鸟类的骨架更轻盈，更利于飞行。
- Xrays of limb bones may show reduced density and thin cortices and in some cases fractures in metaphyses. 对四肢骨骼的X光检测显示出骨量减少，皮质变薄，甚至干骺端碎裂。
- The atom's reduced density matrix is calculated when the quantum theory in small system coupled to thermal reservoir is used.The decoherence properties of atom is analyzed. 利用小系统与库耦合行为的量子理论，计算原子约化密度矩阵非对角元，分析原子状态的消相干特性。
- Besides, with the Hamiltonian of the interaction between the field and the atom with Kerr medium, the evolution operator and the reduced density operator of the field are derived, then the other basic work model is obtained. 其次，从光场与原子附加克尔介质相互作用哈密顿量出发，得出非线性J-C模型系统的一般时间演化算符和光场的约化密度算符，得出了本文的基本工作模型之二。
- first order reduced density matrix 一阶约化密度矩阵
- second order reduced density matrix 二阶约化密度矩阵
- Reduced density matrices and pair potentials in protein folding and binding 约化密度矩阵和蛋白质研究中的原子对势能
- Theoretical Analysis of Two Reconstruction Schemes of Reduced Density Matrices 两种约化密度矩阵重构方法的理论分析
- Hunger had reduced the dog to skin and bone. 由于饥饿这条狗瘦成了皮包骨。
- He is reduced almost to a skeleton. 他瘦得几乎变成了一个骨头架子。
- They were reduced to begging or starving. 他们穷得不行乞便挨饿。
- The enemy were reduced to the small island. 敌人被困在那个小岛上。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- The seller reduced the price for cash down. 那销售者对现款交易的顾客减价优待。
- After the election the party was reduced to a rump. 选举之后，该党的党员所剩无几了。
- The stream is reduced to a mere trickle in summer. 夏天那条小河的水量减少，成了涓涓溪流。
- The officer was reduced to the ranks. 这军官被降为士兵。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- Borax must be reduced to powder for infants. 硼砂必须研成细粉才能供婴儿使用。
- The cancer victim was reduced to skin and bones. 那个癌症患者瘦得皮包骨。
