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- This paper develops a new VMI model with linear time varying demand and partial backlogging, which includes a single vendor and buyer and from raw material to final product. 摘要考虑订货商面临线性时变需求和仓库在出空期间出现短缺量部分拖后的情况，提出了一个从原材料到产成品包括单一供应商和订货商的供应商管理库存模型，并进行了最优解仿真寻优计算。
- The steam power system ( SPS) should be operated under the optimal scheme to meet the varying demand of steam and power from process, to reduce cost and save energy for petrochemical industry. 为了满足石化企业工艺过程对蒸汽和电力不断变化的需要,实现企业降低成本、节能降耗的目的,必须保证蒸汽动力系统在最优状态下运行。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Thanks to its flexibility, OTC transactions have developed rapidly and offered increasingly rich products as they adapt to the diversity of market participants and their varying demands. OTC方式凭借其灵活性更好地适应了外汇市场主体多元、需求多样的特点，因而取得了迅猛发展，OTC方式的产品也日益丰富。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- Research on Optimization of Supply Chain Stock - Out Times and Reorder Frequency under Time - Varying Demand 时变需求环境下供应链缺货时点与补货次数优化研究
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- At that time he had two helpers. 当时他有两个助手。
- I'm sorry to obtrude on you at such a time. 我很抱歉在这个时候打扰你。
- I referred to my watch for the exact time. 我看了一下手表好知道准确的时间。
- God mete out justice in his own good time. 羞恶自有报，只争迟与早。
- And since it has long term agency agreements with many world-famous shipping companies,it can easily meet the client's varied demands. 它和世界上许多大的船运公司都有长期的代理协议，所以能满足客户各种不同的要求。
- I spend most of my time scouting around for book. 我把大部分时间都用来找书了。
- It may take a long time to find a solution to the problem. 也许要花很长时间才能找到解决这个问题的办法。
- The teacher let him off the hook with a warning this time. 这一次老师放过他，只给了一个警告。
- Optimal Replenishment Policy with Delay in Payment and Varying Demand Rate under Temporary Price Discount 考虑需求率变化与延期支付的临时订货模型
