滞后

In the case of discrete systems, some simple stability criteria are given in terms of matrix norm and the spectral radius of matrix, which are delay-independent and are therefore valid for any large delay.

对带滞后的线性定常离散广义系统，则通过矩阵的范数与谱半径建立了一些形式简单的稳定性判据，用它们判别系统的稳定性时，不会因滞后的增大而明显地增加计算量。

The high myope eye had the higher accommodation lag. The myope may need higher accommodation stimulus to reach the demand.

屈光参差者的高度数眼表现出更多的主觉调节滞后量，近视的发生与该眼有更大的调节调节滞后相关。

On average, the SSC in winter is 2 times than that in summer; and the SSC in spring tide is 2.96 times than that in neap tide.(2) The correlation coefficient of the daily tidal range and SSC at a tide circle is 0.86, and it goes up to 0.96 and 0.93 with one day and two days lag of SSC. This reflects that there has a hysteresis of one or two days of SSC to the tidal range.

三年平均而言，冬季悬沙浓度为夏季的2.0倍，大潮悬沙浓度为小潮的2.8倍；(2)平均的大-小潮半月周期变化中日悬沙浓度与同日潮差之间的相关系数为0.86，(显著性水平0.01)，与提前1日潮差之间的相关系数为0.99(显著性水平0.01)，与提前2日潮差之间的相关系数为0.93(显著性水平0.01)，反映潮差变化对悬沙浓度的影响有1-2天的滞后效应；(3)芦潮港月均悬沙浓度与长江大通站的月均流量呈显著负相关，尤以流量滞后19天的相关性最好。

It is shown from the study results that (1) SSC has obvious neap-spring and seasonal variations with periods being 14.7 days and 368 days, respectively, on an average, SSC during the spring tide was 2.96 times as much as that during the neap tide, and SSC in winter was twice as much as that in summer;(2) correlation coefficient between daily SSC and tidal range on the same day in a mean neap-spring period of 15 days was 0.86, and correlation coefficients between tidal range and daily SSC with one day and two day lag were 0.99 and 0.93, respectively, which indicates that the effect of tidal range variation on SSC has a one day or two day hysteresis;(3) the monthly mean SSC was negatively correlated with the monthly mean water discharge at the Changjiang River Datong station, especially well with the water discharge with a lag of 19 days.

悬沙浓度具有显著的大、小潮和季节性变化，变化周期分别为14.7 d和368 d，平均而言，大潮为小潮的2.96倍，冬季为夏季的2倍；2）平均大、小潮半月周期中日悬沙浓度与同日潮差之间的相关系数为0.86，与前1日潮差之间的相关系数为0.99，与前2日潮差之间的相关系数为0.93，反映潮差变化对悬沙浓度的影响有1~2d的滞后效应；3）月均悬沙浓度与长江大通站的月均流量呈显著负相关，尤其与流量滞后19d的相关性最好。

Through imitates the artificial intelligence control algorithm in the terminal in the big inertia, in the pure time delay system's application, may overcome the traditional PID control the lagging of phase, the integral to be saturated, solution control system's stability and accurate contradiction.

在终端通过仿人工智能控制算法在大惯性、纯滞后系统中的应用，可克服传统PID控制的相位滞后、积分饱和，解决控制系统的稳定性及准确性的矛盾。

Do not confuse the above definitions of lead/lag in the spatial domain with the electrical definitions of lead/lag in the radian domain.

不要把上面定义的空间域的超前/滞后定义与电学定义的弧度域的超前/滞后混淆）。

The methods of realize ZVS for the lagging arm and the loss of duty cycle of output voltage of secondary winding are studied.

探讨了实现滞后臂软开关的方法和占空比丢失现象，采用串联谐振电感来实现滞后臂的软开关。

Based on an experimental apparatus for paraffin thermal expansion characteristics with water,the influences of cooling means and spring pressure on thermal hysteresis phenomenon in relationship curve of displacement vs.temperature during increasing and decreasing temperature cycles of paraffin have been investigated by experiments.

在水浴加热石蜡热膨胀性能试验装置的基础上，通过实验研究了不同冷却方式、弹簧压力和不同温度测量点下石蜡升温和降温过程中位移-温度关系曲线的"热滞后"的现象，分析了"热滞后"的实际原因。

According to the actual realities, the paper has also put forward some problems and difficulties that the undeveloped areas of the West and Centre of China arc suffering. These problems and difficulties include retard in ideology, stagnation in thinking, unsoundness in product structures, shortage in fund, retard in infrastructure construction, backwardness in education and technological development.

结合实际，全面分析了中西部经济欠发达地区特别是宜黄县域经济发展存在的主要问题及其成因，主要有：观念落后，思想僵化：产业结构不合理；资金严重短缺：基础设施建设滞后；科技和教育水平低；信息化建设滞后等，并对其产生原因进行了认真剖析。

In the procedure of multilevel cyclic loading, the stress-strain curve displays cusped hysteresis loop, which moves toward the direction of strain increasing with time and strain amplitude increasing, indicating the generation of plastic strain continuously.

在多级循环荷载过程中，岩石的应力-应变关系呈现尖叶状的滞后回线，滞后回线随着循环次数的增加向应变增大的方向移动，并不断地产生弹塑性应变。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。