Due to the lifecycle of regenerative resources, there must be an optimal period to exploit them for maximum profits.
由于可再生资源具有生命周期，因此从经济收益的角度来讲必然存在一个最优开采期。
Whether the flowers of Rosa rugosa Thunb treated with 1125 were dry or fresh, the optimal period was the flower bud stage.
经1125处理的玫瑰，无论是干花还是鲜花，适采期均为蕾期，比对照提前1天。
Using the property of Markov at the points of replacement period, a model of determining the optimal period is developed with objective of maximizing the mean time to first failure of system.
利用在更换周期点上具有的马尔可夫性质，以系统首次故障前平均工作时间最大为目标建立了确定最佳更换周期的模型。
Heart rates around 55-60% of your maximum heart rate (220-(your age)=maximum heart rate) for a period of at least 30min is optimal for just burning fat.
心脏跳动幅度在你最大心率（最大心率 =220- 你的年龄）的 55% 到 60% 之间持续30分钟的时候，是燃烧脂肪的最佳时期。
This indicated head growth at this time is linked to intellectual ability and "it is possible that good nutrition during this period may encourage optimal brain growth"。
这表明了这个时期的头部发育与智力有关，而且“这个时期的良好营养可能会促进大脑的最佳发育”。
It's optimal for a pet to start the process before you bring him home, since the critical socialization period is early in life.
因为最适合交际的阶段比较早，所以，宠物在进入家门之前就该经历这样的过程。
Optimal patent grand period can reach equilibrium between motivating technology innovation and increasing social surplus.
适时的专利授权期能够在激励企业技术创新和增加社会剩余之间取得均衡。
By simulating analysis, the optimal parameters, Numbers and type of construction machinery can be obtained, and the smallest cost and shortest period of construction projects can be predicted.
通过仿真分析，可以对施工机械的机型、数量以及作业参数作出最佳选择，并且预测出施工的最短工期和最低施工费用。
On basis of which, the paper makes theoretical study to its optimal operation period and maximum production capacity.
在此基础上，对其最佳操作周期以及最大生产能力进行了理论性研究。
For a given advertising level of each period, the optimal dynamic pricing strategy of the retailer was given and the rules of pricing were analyzed.
在给定各周期广告水平下，给出了零售商最优的动态定价策略，分析了零售商定价规律，发现其定价规律具有“振荡”性，并趋近于一定值。
Underallocation----Less-than-optimal levels of a resources are dedicated to a given use or time period.
无效配置——在特定的时期内对某种资源的使用没有达到最佳水平。
The paper discusses the problem of choice of optimal portfolios in multi period risk investment by safety first criterion.
本文讨论了用安全第一的一个标准选择最佳多期风险资产组合的问题。
Optimum period for control, optimal chemical using amount and spraying method have been put forward.
同时提出防治适期、最佳用药量的喷雾作业方式。
Bank financial forecast refers to an estimate of balance of the given receipts and disbursements for a particular period based on optimal information in hand currently.
银行财务预测是指基于目前所掌握的最佳信息，针对特定时期、特定收入与支出的估计。
To improve part quality, shrink molding period and decrease energy consumption, the work provided a set of theory according to hybrid integrated intelligent optimal ideal.
为了在脉振注射成型过程中提高制品质量、缩短成型周期、降低能耗，提出了混合集成智能多目标优化的思想。
The optimal control of minimal period on the changing order set can be transferred into the calculation for problem of trip salesman, and the optimal arrangement is a special optimal control.
变序集上周期最小的最优控制可以转化为一个求解旅行推销员问题，而最优调度恰好是一类特殊的最优控制。
They also analysed the model's period-doubling phenomena and existence of chaotic character, and studied model's optimal control problems.
通过对最佳状态的稳定性分析，论述了该系统存在倍增周期现象和混沌现象的可能性。
This paper discusses the optimal negotiation edge during the period of virtual enterprise's formation, and proposes a programming model based on demand division and risk avoidance.
研究了企业动态联盟形成初期合作伙伴企业协商的最优边界问题，建立了基于需求分解和风险规避的最优协商边界求解模型。
The life cycle and movement rule of familiar vegetable pests were investigated. The optimal control period was brought forward based on the developing and movement rule of the pests.
调查研究了常见蔬菜害虫的生活史、昼夜活动规律，根据害虫发育情况和活动规律提出了最佳防治时期。
Under the optimal conditions, the processing of water can not only prolong the efficient exchange period of the resin, but also make the hardness of feeding water almost to zero.
在试验选择的优惠条件下进行水处理不仅能延长树脂的有效交换周期而且交换后的给水硬度可趋于零。
This paper discuss the optimal investment and insurance in such a one-period market and get the valuation of the optimal assets investment amount and the optimal amount of dismiss compensate.
本文利用期望-方差效用理论，讨论了单时段市场风险资产的绝对免赔额保险中最优免赔额的存在性问题，并给出了最优免赔额、最优风险资产投资额的定价表达式。
The optimal treatment period is 12 months.
术后最佳治疗期限为12个月。
The interactive parameterization design helps the optimal design of product and it's variants, shorten the product developing period and reduce manufacturing cost.
相关参数化设计方法有利于实现产品的最优设计或变形产品设计，缩短产品开发周期、降低产品开发成本和制造成本。
The analytical expressions of the optimal design intensity and return period are deduced by using the decision-making m…
使用该决策方法导出了最佳设计烈度和重现周期的解析表达式，从而得出了对抗震设计具有重要意义的结论。
The paper describes an EOQ model with multiple finite periods and price fluctuation in its each period under supplier timed credit and the optimal ordering policies was obtained.
对基于供应商提供定时信用支付条件下的有限时域中各时段货价发生变动的EOQ问题进行了研究，并得到了最优订购策略。
The hardening state of an instant bond can be maintained at an optimal level since it will be pressed automatically within a certain time period after a bonding.
由于粘结点胶后确定时间内自动施压，固化状态能维持最佳粘结力水平。
We propose several novel data migration and data reorganization algorithms and query processing methods in the reorganization period, which can get the optimal performance.
本文提出的数据迁移和数据重组算法以及在线重组期间的查询处理方法，能够有效地支持在线重组期间对用户查询的快速响应。
By detecting the activity of pectinase and hemicellulase and the retting-period, the optimal retting-condition was determined.
通过测定脱胶过程中果胶酶、半纤维素酶活力及脱胶周期，确定脱胶的适宜条件。
By detecting the activity of pectinase and hemicellulase and the retting-period, the optimal retting-condition was determined.
通过测定脱胶过程中果胶酶、半纤维素酶活力及脱胶周期，确定脱胶的适宜条件。
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