Note: the optimal time to close the database connection will depend on the specific business logic of your Web application.
注意：关闭数据库连接的最佳时间取决于Web应用程序的特定业务逻辑。
So I turned to some experts and here's what I found: the optimal time to find bargains is in the run-up to the season when the stores are flooded with merchandise and competition is fierce.
于是我求助于专家，以下是我的发现：买东西的最佳时机是旺季来临时，此时货物很多，商家竞争激烈。
What's the optimal time to call you, then?
那什么时候给你打电话最适合呢？
Ironically, this can be an optimal time of growth in their life.
具有讽刺意味的是，这是他们成长的最佳时间。
High school stage is the optimal time and critical stage for geographic education.
高中阶段是进行地理教育的最佳时机和关键阶段。
The optimal time control on series capacitors is studied.
研究了串联电容器的最优时间控制。
Additionally the algorithm has the optimal time and space complexity.
此外，这种算法具有最优的时间和空间复杂性。
Objective To discuss the optimal time of milk withdrawal after delivery.
目的探讨产后回乳的最佳时机。
It can also, optionally, synchronise system time with the optimal time server.
该软件还可以有选择地使用最理想的时间服务器同步系统时间。
The transient energy of the system is minimum when opening at the optimal time.
汽门最佳开启时刻满足的条件是，开启后系统的暂态能量最小。
You can even use historical cost data to determine the optimal time to replace equipment.
你甚至可以利用历史成本记录来决定在最佳的时间来更新设备。
At last, the IPSO algorithm is applied to TSPS to obtain optimal time-sharing power supply scheme.
最后将改进算法应用于分时供电优化，以获得最优的分时供电方案。
This paper mainly discusses the effectiveness of the equal-time method in solving the optimal time control problem.
本文论述等时法解决快速控制问题的有效性。
Objective: to probe into the optimal time of magnesium sulfate cold and hot alternative compress to treat phlebitis.
探讨硫酸镁冷热敷交替治疗静脉炎的最佳时机。
Objective: To explore the optimal time for in vitro expansion and transplantation of umbilical cord blood hemopoietic cells.
目的：探讨脐血造血细胞体外扩增及移植的最佳时机。
Preparation of acellular nerve matrix using Trito X-100 and sodium deoxycholate as extracting agent: Is there an optimal time?
以TritonX- 100和脱氧胆酸钠为萃取剂制备兔脱细胞神经基质：有最佳时间吗？
Objective To investigate the optimal time and method of the early repair of the full layer eyelid defect caused by chemical burn.
目的探讨化学烧伤导致患者眼睑全层缺损后早期修复的时机和方法。
Objective: to investigate the optimal time point to dismantle the distractor during mandibular distraction osteogenesis in goats.
目的：探讨下颌骨牵张成骨中牵张器的最佳拆除时机。
Objectives:Explore the new concept of diagnosis and treatment in cryptochidism and looking for optimal time for treating cryptochidism.
目的：找出隐睾治疗的最佳时机和方法，探讨其诊治新概念。
Objective to investigate the physiologic course of third stage of labor, and to judge the optimal time of natural placental separation permitted.
目的探讨第三产程中胎盘剥离的生理过程和适宜时间。
Objective: To estimate the amount of peripheral blood stem cells (PBSC) right during mobilization and determine the optimal time for PBSC collection.
目的：确切评估动员后外周血干细胞(PBSC)水平的变化，及时指导临床选择最佳采血时机。
Objective To investigate an applicable method and optimal time in establishment of the animal model for chemotherapy-induced premature ovarian failure.
目的探索建立化疗损伤性卵巢功能早衰动物模型的适宜方法及最佳时间。
Objective To discuss the maternal-neonatal outcomes and the selection of the optimal time of delivery after preterm premature rupture of membranes(PPROM).
目的探讨早产胎膜早破（PPROM）的母婴预后及对不同孕周的PPROM孕妇最佳分娩时机的选择。
The mechanism of modern fighter guidance is discussed, referring to the theory of missile guidance. A kind of fighter guidance law based on optimal time is given.
借鉴导弹导引理论对现代战机的导引机理进行了探讨，推导出一种基于时间最优的飞机导引控制律。
Objective to analyze the relationship of treatment between severe multiple injuries and long bone fractures and discuss the methods and optimal time to deal with them.
目的分析严重多发伤与长骨损伤的救治关系，探讨骨折固定方式与处理时机。
Based on the detailed analysis of the channel impulse response (CIR) leakage in the practical OFDM systems, a sub-optimal time domain channel estimation algorithm is proposed.
基于对实际系统中信道冲激响应(CIR)泄漏问题的详细分析，提出了一种次优的时域信道估计算法。
The essence of this problem is to determine the optimal point of torpedo release, i. e, the optimal approaching course and the optimal time of torpedo release for the helicopter.
研究攻潜策略实质是确定最优投雷点，即直升机的最优接近航向和投雷时刻。
The essence of this problem is to determine the optimal point of torpedo release, i. e, the optimal approaching course and the optimal time of torpedo release for the helicopter.
研究攻潜策略实质是确定最优投雷点，即直升机的最优接近航向和投雷时刻。
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