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。
The statistical relationship between the occurrence frequency and the duration time of sand-dust storms in China;
沙尘暴发生次数和持续时间的统计关系
The way calculating the duration time of inductor current in every work cycle was respectively given,when power switches were turned off in Boost a.
分别给出了基本的Boost和Buck变换器每个开关周期中功率开关关断后电感电流持续时间的计算方法,并根据电流持续时间与开关断开时间的关系预测下个工作周期变换器的运行模式,确定模型的系数矩阵。
The sand-dust storm data compiled by the China State Meteorological Bureau for the period of 1960 to 2000 are analyzed to find the distribution of the sand-dust storm occurrence frequency against the duration time.
通过分析中国国家气象局整理的中国沙尘暴资料,发现持续时间大于t的沙尘暴次数N满足:N=A·10-bt,其中A、b是正的常数。
signal duration
信号持续时间，脉冲持续时间
minimum clock-pulse duratio
最小时钟脉冲持续时间
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。
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
back porch interval
消隐脉冲后肩持续时间
impact duration
击打持续时间 -打印机的
frequency and duration method
停电频率和持续时间法
the ceremony was of short duration; he complained about the length of time required.
典礼的持续时间很短。
Enter a duration of 24 or fewer hours.
输入24小时或更短时间的持续时间。
For conditions more than one hour. Shorter periods increase limit by 50%
条件为持续时间超过1个小时,持续时间更短,极限值可增加50％
lengthen or extend in duration or space.
延长或者在持续时间或者空间上延伸。
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