Population balance models are finding increasing application in the design, optimization and control of grinding circuits.
总体平衡模型在磨矿回略的设计和操作员优化及自动控制中的作用越来越大。
The quadrature method of moment (QMOM) for population balance equation (PBE) with volume as the internal coordinate was investigated.
研究以体积为内部属性的群体平衡模型的矩积分求解方法。
Focusing on the mass population balance model, the effect of granule size distribution on the packing voidage will be discussed in detail.
研究工作将在质量集合平衡模型的基础上，考虑造粒粒度分布对孔隙度的影响。
Based on models of unit operations and the population balance principle, a new modeling approach was established for a generalized circuit configuration.
本文从粉碎和分级的单元作业模型以及循环回路物料平衡原理出发，建立起一个描述闭路粉碎过程的通用模型。
As a matter of the utmost urgency, the world has to keep balance between over population and finite resources.
当务之急是，世界必须在过剩的人口和有限的资源之间保持平衡。
We used established demographic techniques, including the general growth balance method, to evaluate the completeness and coverage of the household death data obtained through population censuses.
采用现有的人口统计方法(包括一般增长平衡法)评估人口普查获得的家庭死亡数据的完整性和覆盖范围。
However, it must be stressed that public health authorities must always balance the health risk to the population against other undesirable consequences.
然而，必须要强调的一点是，公共卫生主管当局必须始终权衡人口卫生风险和其它不良后果。
But as human population has exploded over the past few thousand years, the delicate ecological balance that kept the Long Summer going has become threatened.
但是随着几千年人口的激增，脆弱的生态平衡已经使长夏期能否继续受到威胁。
The world population can balance out at 9 billion in 2050 and oil will be finished.
世界人口在2050年将达到90亿的平衡，石油将被用尽。
It has been long recognized that the population between men and women lost balance, especially in the future, this problem will be more obvious.
人们很久之前就意识到男女之间的人数失去了平衡，尤其是在不久的将来，这个问题将更加明显。
Unfortunately, the general population fails to see that sharks are a vital component of our oceans because they maintain balance in our underwater ecosystem and, now they are facing extinction.
很不幸地，一般民众却不了解鲨鱼是海洋中必需的生物，因为鲨鱼能维持水中生态系统的平衡，不过，牠们现在却面临绝种的命运。
Total arable land dynamic balance equation stipulates the control subject for the regional arable land system un-der the base of predictable technology and population pressure.
在可预知的技术进步和人口压力背景下，耕地总量动态平衡方程为区域耕地系统的状态规定了调控目标；
Forecast for the funds payment balance with actuary principle encompass population, personal account, funds payment and gap forecast.
运用精算学原理预测基金收支平衡，涉及人口预测、个人账户预测、基金收入和支出预测、收支缺口预测等。
The province also has big worries about the balance between its working-age population and their dependants in the decades to come.
该省还有很大的忧虑，即在今后几十年里处于工作年龄段的人口和他们的子女的之间的平衡问题也会出现。
On the one hand, through leading perturbation variables into the generation process of particle population, a balance is reached between the order and random behaviors.
一方面在新的粒子种群产生过程中引入扰动变量，使粒子群在遵守秩序和随机行为之间达到平衡；
The establishment of system of child care leave is to balance the contradiction between work and nursery, promote the gender equality and the reproduction of population and labor force.
设立育婴休假制度的目的是平衡工作与育婴的矛盾，促进两性平等以及人口和劳动力的再生产。
Another way to balance the population is to import young workers.
另一个平衡人口的办法是引入年轻的工作人口。
It is the main influence behind the decline of population growth and, perhaps even more important, is shifting the balance of age groups within a population.
它也是人口增长减慢背后的主要推动力。也许更重要的是，它正在改变世界人口中的年龄群体间的相互平衡。
A basic question is what can be done to bring the world's food supply and its population into balance.
它的根本问题是使世界上的食品供应与其人口保持平衡。
The paper points out key tasks and solutions of dynamic balance of total amount of the cultivated land in Beijing, a special region with contradiction between population and the land.
研究结果分析了北京市耕地占补平衡的现状，提出在北京市这种特殊人地矛盾地区耕地占补平衡的工作重点和解决方法。
Later they created carnivores to balance the herbivorous population. Here too, the species had to maintain equilibrium.
接着，为了维持草食动物的数量平衡，他们又创造了肉食动物，这才能使自然生态保持平衡状态。
Later they created carnivores to balance the herbivorous population. Here too, the species had to maintain equilibrium.
接着，为了维持草食动物的数量平衡，他们又创造了肉食动物，这才能使自然生态保持平衡状态。
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