研究了双光子非共振作用系统中纯度和密度算符间距的特性。
The time evolution properties of purity and distance between density operators in two photon non resonant interaction system are studied.
提出了一种层状地基—基础—框架相互作用系统的参数识别方法。
A parameters identification method of the layer soil-foundation-frame interaction system is presented.
首先，本文研究了单模相干光场与三能级原子相互作用系统的场熵演化特性。
First, the evolution properties of the field entropy of the system of three-level atom interacting with the single-mode coherent-state light field are investigated in this paper.
研究了双模真空场与两个耦合二能级原子相互作用系统的双原子偶极振幅平方压缩。
The two-atom dipole amplitude-squared squeezing in a system of a two-mode vacuum field interacting with two coupled atoms was studied.
研究了两个全同的二能级原子与单模真空辐射场相互作用系统中原子的偶极振幅平方压缩效应。
The atomic dipole amplitude squared squeezing in the interaction system of the two identical two level atoms with single mode vacuum field is studied.
结果表明：只有在光场和原子能级共振时，光和原子相互作用系统的存储态才能最终演化到暗态。
Numerical results confirm the theory that the system can be prepared in dark states only under resonant conditions between the fields and the atomic transitions.
本文数值模拟结果表明，ENSO循环的主要动力学过程可由热带海气相互作用系统自身所确定。
The results from this model study indicate that the essential dynamics of the ENSO cycle can be determined by the tropical Pacific coupled ocean-atmosphere system itself.
运用量子约化熵研究了V型三能级原子与双模奇偶纠缠相干光场相互作用系统中场熵的演化特性。
The quantum reduced entropy evolution of a V-type three-level atom interacting with the two - mode odd-even entangled coherent field is investigated.
本文研究了两个二能级原子与单模真空场相互作用系统中的量子纠缠度，得到了一些有意义的结论。
In this thesis, the degrees of the quantum entanglement in the system of two two-level atoms interacting with a single mode vacuum field are explored, and a series of significant results are obtained.
利用全量子理论，研究了压缩真空场与V型三能级原子依赖强度耦合作用系统中原子的偶极压缩效应。
The time evolution of atomic dipole squeezing in the intensity-dependent coupling interaction between squeezing vacuum state and V-type three-level atom is studied using the quantum theory.
并把这种算法推广应用到未知输入条件下的地基参数识别和贮仓-基础-结构相互作用系统参数识别。
The methods developed are extended to identify parameters of foundation without input and parameters of foundation-silo interaction system .
但是，细胞分化并非单一因素作用的结果，而是基因、细胞质及细胞外环境作用系统相互作用与反作用的结果。
The cell differentiation is not the result of the action of a single factor but of the interaction and counteraction of the action system among the gene, cytoplasm and extracellular environment.
现在，包括将来一段时期内，人们不得不借助于各种在量子色动力学指导下的夸克模型来研究强相互作用系统。
At present and even in the future, the QCD-inspired model will be a useful tool to explore the secret of strong interaction systems.
利用岩石破裂过程分析RFPA2D软件系统对不同岩性的二岩体相互作用系统受力破坏过程进行了数值模拟。
By using a rock failure Process Analysis Code RFPA2D, the deformation and failure behavior of a double rock sample system were studied numerically.
应用有限棱柱单元法对群桩与土相互作用系统进行了三维弹塑性分析，并以无限棱柱元模拟半无限空间地基土的边界条件。
In this paper, the three dimensional elastoplastic analysis of a group pile soil interaction system is made by using the finite prism element method.
用量子相对熵研究了耦合双原子与单模真空场相互作用系统的纠缠度，讨论了原子间偶极相互作用对相对熵纠缠度的影响。
The entanglement degrees of two coupling-atoms interacting with a single-mode vacuum field in the Tavis-Cummings model were investigated by using quantum relative entropy.
利用全量子理论，在相互作用绘景中研究了两个耦合二能级原子与单模压缩相干态光场相互作用系统粒子布居几率的时间演化规律；
The atomic population evolution vs. time in the system of two two-level coupling-atoms interacting with squeezed coherent light field is investigated.
研究了存在克尔介质时，双模压缩真空场与耦合二能级原子相互作用系统中光场的压缩性质，讨论了克尔介质与光场的耦合强度对光场压缩特性的影响。
The squeezing property of the light in the system of two-mode squeezing vacuum field interacting with two coupling atoms in Kerr medium is studied by means of quantum theory.
最后，它强调了这种系统的能源转换作用。
Eventually, the energy-transforming role of such a system was emphasized.
巨噬细胞是在小鼠和其他哺乳动物的免疫系统对细菌等侵入性生物的反应中发挥作用的细胞。
Macrophages are cells that play a role in the response of the immune system of mice and other mammals to invasive organisms such as bacteria.
一旦与冰架脱离，这些冰山就会受到南极洲附近的洋流和季风系统的作用，并开始漂移。人们可以在南极洲较暗淡的冰山群中找到这些散落的冰山。
Once detached from the ice shelf, these bergs drift in the currents and wind systems surrounding Antarctica and can be found scattered among Antarctica's less colorful icebergs.
GPS系统对于那些在陌生城市寻找目的地的人来说，作用很大。
The GPS system is of great use to whoever wants to find his destination in a strange city.
对公共交通系统和私人汽车进行更好的设计及更合理的使用，会在帮助美国交通获得更多可用能量上发挥重要作用。
Better design and wiser use of both mass transit systems and private vehicles will play an important part in helping America get more out of energy used for transportation.
他在使用一种危险的药物——这种药物很快作用于中枢神经系统。
He's taking a dangerous drug: it acts very fast on the central nervous system.
这证明我们的免疫系统在我们衰老时确实不能很好地发挥作用。
This is evidence that our immune system really doesn't function so well when we age.
与其他方法相比，生物防治的优点是它提供了一种成本相对较低、有害副作用最小的永久性防治系统。
The advantage of biological control in contrast to other methods is that it provides a relatively low-cost, perpetual control system with a minimum of detrimental side-effects.
他说：“人类系统和我们赖以生存的环境是相互联系的，双方是相互作用的。”
"The human systems and the landscapes we live on are linked, and the interactions go both ways," he says.
内分泌系统是一种作用于周身各器官的系统。
The endocrine system is a system that acts on various organs throughout the body.
候鸟会影响老家和冬季目的地两者的生态系统，而扰乱传统路线可能会产生意想不到的副作用。
Migrating birds affect ecosystems both at home and at their winter destinations, and disrupting the traditional routes could have unexpected side effects.
由于其中可能涉及复杂的物种相互作用，通过移除一个关键物种并观察生态系统的变化来确定该物种是有问题的。
Because complex species interactions may be involved, identifying a keystone species by removing the species and observing changes in the ecosystem is problematic.
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