环境随机变化。环境条件非确定性的、不可预见性的变化会导致平衡密度的变化。
Environmental stochasticity, This is a nondeterministic, unpredictable variation in the environmental conditions, resulting in a changing equilibrium density.
构造了一个具有阶段结构的捕食—食饵模型，并研究了庇护所效应对于该系统平衡点的稳定性、平衡密度及其种群长期续存的影响。
This paper studied the effect of prey refuges on the stage-structured predator-prey model with two life stages-immature and mature, and with a mature prey using refuges.
科学家们很早之前就发现，诸如煤烟、灰尘和其他细小的微粒，能改变云体的密度及大气的辐射平衡。
Scientists have known for a long time that aerosols such as soot, dust and other small particulate matter, alter cloud density and the radiative balance of the atmosphere.
当我们逐渐衰老是，我们会丧失一些肌肉组织，骨骼密度、平衡能力和灵活性，这些都将使我们行动力减退。
As we get older, we lose lean muscle mass, bone density, balance and flexibility-all of which can make it harder to move around.
幸而研究人员依赖数值模拟，发现处于均功平衡的所有CD M晕都有类似的密度特性。
Instead researchers track it using numerical simulations, which show that all CDM halos in virial equilibrium have similar density profiles.
妮维雅亲密度报告显示，在我们的“最要好朋友”、“亲密朋友”和“熟人”的数量之间存在著一种平衡，这种平衡始终贯穿于我们一生。
The Nivea Closeness Report found the balance between our numbers of "best friends", "close friends" and "acquaintances", remains fairly constant throughout our lifetime。
利用气体型流体进行欠平衡钻井，或钻易漏地层时，流体密度及井下液柱压力的确定十分重要。
When underbalanced drilling or drilling easy leaky zone by using aeration fluid, the determination of fluid density and downhole fluid column pressure is very important.
其结果是跳绳提高动态的平衡和协调，反射，骨密度和肌肉耐力。
As a result jumping improves dynamic balance and coordination, reflexes, bone density and muscular endurance.
在两组中，总体的骨矿物质密度、平衡能力和灵活性没有明显的提高。
Total bone mineral density, balance, and flexibility did not improve significantly in either group.
如何在保证幼儿园使用功能的灵活性和高密度的场地条件限制二者之间保持平衡？
How to make a balance between the flexibility required by the function of a kindergarten and the high density limited by the site condition?
注意平衡膳食及摄取充足的豆制品有利于骨密度提高，植物性食物摄入过多不利于骨密度提高。
Attention to balance diet and intake enough bean products helped increase bone density and too many intake of vegetality food was unfavourable to increase bone density.
UCR有利于色彩密度和色度的良好再现，但会损失图像的反差和灰平衡效应。
UCR is conducive to the reproduction of density and saturation, but likely to lose contrast and gray balance of image.
指明非平衡系统的宏观熵产生是由其微观状态数密度在空间随机地不均匀离开平衡引起的。
It shows that the macroscopic entropy production in a nonequilibrium system is caused by spatially stochastic and inhomogeneous departure from equilibrium of the number density of micro-states.
由于种内互助作用的存在及食植者采食速率、食植者密度等因子的影响，牧草植物种群存在多个稳定平衡点。
There are multiplicity of stable states in herbage populations owing to the influences of intraspecific mutualism, feeding rate and density of herbivores.
针对表面接枝二分散聚合物与溶剂的混合体系建立了描述聚合物平衡态密度分布的自洽场理论。
The density profiles in a mixture of bidisperse polymer brushes and solvent are simulated with the aid of a self-consistent field theory.
生产出的产品具有性能稳定、密度低、制动平衡等特点，从而保证了产品质量和服务。
All the products are stabilized with low of density and wear, make balance in brake etc. Then promise the quality of products and the service.
本文对涉及露点、泡点、密度、平衡常数、热物性参数以及传热计算等问题进行了探讨。
Some problems of heat transfer are studied in this paper, they are dew point, boiling point, density, equilibrium constant, thermophysical properties and heat transfer calculation method.
试验证明，每天补充50毫克叶黄素，可以在140天左右让黄斑色素密度快速达到相对平衡水平。
It was proved by the experiments that to supplement 50mg lutein per day for approximately 140 days can make the density of macular pigment quickly reach the relatively balanced level.
采用切片法、相似度概念和热平衡以及进口温度检验法，对收集到的圆管垂直向上流动临界热流密度实验数据库进行了分析。
The world vertical upward flow round critical heat flux experimental database is analyzed based on the slice method, similarity measure, heat balance and inlet temperature verification.
该模型用于化学非平衡尾流积分电子密度与NO_2化学发光辐射等参数的计算。
The models are applied to calculate the integrated electron density and NO2 chemiluminescence in the wakes.
本文首先实验测定了7 - ACA结晶热力学数据和粘度、密度、电离平衡常数等必要的基本物性数据。
First, the crystallization thermodynamic data and other basic physicochemical data of solution, such as viscosity, density of 7-aca solution and dissociation constants, were measured by experiments.
文章介绍了在航天器热平衡试验中到达航天器表面或被其吸收的红外辐射热流密度的测量技术。
The paper describes the measuring technique of infrared radiant heat flux density reached the surface or absorbed by the surface of spacecraft during thermal balance test.
本机采用新型功耗组件，功率密度高，无红热现象，为纯阻性负载，三相电流平衡。
Because the bank adopts late-model components, high power density, it has not red-hot phenomena. It is pure resistive load and three-phase current balance.
当激子系统趋近统计平衡时，该公式就自动过渡到具有角动量的费米气能级密度公式。
When the exciton system closes to the statistical equilibrium, this exciton state density automatically approaches to the Fermi-gas nuclear level density with angular momentum.
两体系平衡饱和液的密度和折光率均随着乙醇含量的增大而减小。
The values of density and refractive index of the saturated solution decrease with the ethanol content increasing.
第四密度的地球气候将不极端，因为第四密度里没有冷热，只有平衡。
Fourth dimensional earth will not know extremes in temperature, for within the fourth dimension there is not hot or cold; only balance.
然后，利用能量平衡关系，得到仅与表面能密度相关的I型裂纹内聚力新的本构方程。
Then, by means of the energy balance relation, a new cohesive stress law of Mode I crack is obtained which is only concerned with the surface energy density within the cohesive zone.
对具有密度依赖生育脉冲的模型，运用频闪映射，结合分支理论和数值分析，得到了正平衡态的存在性、稳定性；
For the model with time-dependent birth pulses, using the stroboscopic map, the theory on bifurcation and numerical analysis, the existence and stability of the positive equilibrium are obtained.
无论采用容积法还是重量法测量吸附平衡，准确计算气相氢密度对于实验结果的可靠性是至关重要的。
Accurate determination of the gas phase density is very important for the reliability of adsorption measurements in both volumetric and gravimetric methods.
平衡指示锤采用可调式结构，现场调节方便，使设备能适用不同密度不同粘度的各种介质。
With adjustable structure balance weight hammer is convenient for field regulating, so the indicator can be used for the liquids of various gravity and viscosity.
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