Study on duration of comfortable temperature in forest tourist areas in subtropical zone;
亚热带森林旅游区夏季舒适温度的持续时间
All of the red tide incidents in South China Sea since 1980 ~2004,the spatial and temporal distribution of the events,and the change characteristics of the average duration of the red tides were analyzed.
收集整理了自1980~2004年的南海历次赤潮事件,并对这些赤潮事件在时间和空间的分布特征以及赤潮持续时间长度的变化特征进行了分析;探讨了形成南海赤潮时空分布特征和持续时间长度变化的可能原因。
The temperature of the reactor was lowered from 55℃ to 20℃ in case of heating failure and the duration in the low temperature were 1,5,12 and 24h respectively.
模拟由于加热失败导致温度从55℃突降到20℃(室温左右),且在20℃时持续时间分别为1h、5h、12h和24h,对高温厌氧消化处理城市有机生活垃圾工艺的影响进行了实验研究。
Firstly,a novel mixed integer nonlinear programming(MINLP) formulation based on continuous time representation,is presented in this paper.
采用连续时间建模方法,建立了一种新的汽油非线性调合和调度集成优化的混合整数非线性规划(MIN-LP)模型,克服了当前在油品调合调度中采用线性调合模型或者将非线性调合过程和调度分开优化的缺陷。
Ant colony algorithm was introduced into continuous time production planning optimization.
针对连续时间生产计划问题,在生产速率、需求率和库存水平等都确定的前提下建立相应的数学模型,并将蚁群算法引入到连续时间生产计划的优化中,利用蚁群算法的自适应、全局优化、并行分布式处理等特性在整个生产计划的可行解中寻找最优解。
In order to deal with batching problem in actual production,a mixed integer linear programming model of continuous time was proposed for short term scheduling of multi-product single-stage batch plant with parallel lines.
为解决实际计划需求的分批问题,提出了一种新颖的单阶段并行机多产品厂短期调度连续时间混合整数规划模型,该模型可同时处理需求分批与批次调度任务,而且考虑了顺序相关的产品转换时间。
(2) According to the size of internal diameter and the PTR of deep vein in lower extremities, the PIDVL is classed by 3 grades.
(2)根据下肢深静脉内径值的大小及返流持续时间的长短将PIDVL程度分为3级。
The duration of the end-plate current parallels the lifetime for channel closing.
终极电流的持续时间与通道关闭的持续时间相平行。
Electric currents persisted only for a moment.
电的流动只持续短暂时间。
duration:Continuance or persistence in time.
"持续,持久:时间上的连续或持续."
Continuance or persistence in time.
持续，持久时间上的连续或持续
signal duration
信号持续时间，脉冲持续时间
playback duration
重放期间，重放(持续)时间
minimum clock-pulse duratio
最小时钟脉冲持续时间
Continuous Load A continuous load is a load where the maximum current is expected to continue for three hours or more (as defined by the NEC for design calculations).
持续负荷持续负荷是指使电流在3个小时或更长时间（根据NEC的定义）内需保持最大值的负荷。
An Analysis of the Narrative Time in The Volcano Lover
流连忘返——《火山恋人》的叙事时间分析
beam pulse duration
电子束脉冲持续时间
pulse duration selector
脉冲持续时间选择器
peak load effective duration factor
峰值功率持续时间率
colour burst interval
彩色同步脉冲持续时间
The storm was of short duration.
暴风雨持续时间很短。
How long does the variable last?
变量应持续多长的时间？
pulse duration discriminator
脉冲持续时间鉴别器
duration of relay operation
继电器动作持续时间