滞后

Desorption of the phosphate previously sorbed on the variable-charge minerals,and some typical groups of soils in China with soil reaction varying from very acid through neutral to alkaline and with different mineral composition was studied.

研究了可变电荷粘粒矿物和矿物学性质不同的代表性土壤对磷酸根的等温解吸特性。结果表明磷酸根的解吸等温线一般都滞后于吸附等温线。

Based on the Kalman filter and projection theory,the new optimal fixed-point,fixed-interval and fixed-lag Kalman smoothers are presented for systems with correlated noises having non- zero means.

中文摘要：对于带非零均值相关噪声的线性离散随机系统，基于Kalman 滤波器和射影理论，提出了新的最优固定点、固定区间和固定滞后 Kalman 平滑器。

Based on the Kalman filter and projection theory,the new optimal fixed-point,fixed-interval and fixed-lag Kalman smoothers are presented for systems with correlated noises having non- zero means.

对于带非零均值相关噪声的线性离散随机系统，基于Kalman 滤波器和射影理论，提出了新的最优固定点、固定区间和固定滞后 Kalman 平滑器。

The reform is facing so many difficulties and problems and the causations are various, including unenlightened educational notions, poor schooling condition, insufficient teacher resource, lagging testing and evaluation system reform, over-size school class, scattered schooling location, immature teacher training mchanism etc.. Those causations themselves and their interactions badly cumber the rural teaching reform.

造成这些困难和问题的原因主要是受到了教育观念落后、办学条件差、师资力量薄弱、考试与评价制度改革滞后、班额过大、教学点分散、教师培训机制不完善等多方面因素的制约，且这些制约因素相互影响阻碍着农村课程改革。

An improved Smith predictive control method which can resolve the problem of a long time delay of the ratio of oxygen to methanol in the manufacturing process of formaldehyde is introduced,and the simulation of the system is also implemented.

针对甲醛生产过程中氧醇比控制中大滞后延迟的难点，设计了改进的史密斯预估控制系统，并实现了对该系统的计算机仿真。

Also, in this paper,all of these works have been carried out by numeric simulation.

滞后环现象，即是这种多定态转变的表现形式之一，同时作了相应的数值模拟。

Modern science and technology provide enormous convenient for gaining information from researched system, however, the research of the disposing method of information which is identified , rootled , filtered and confomified is lagged.

现代的科学技术为获取待研究系统的信息提供了前所未有的便利，然而其信息数据的识别、挖掘、筛选与整合等信息处理方法的研究却明显滞后。

Since the input and output current of the coupling transformer are in phase, the tank's current is lagging the inverter driving voltage.

下图，感抗高的结果是逆变器电流差不多滞后逆变器电压90度角。

The compensation effect of water stress only was observed in the percentage distribution values in fine roots of RAWS plants, which kept significantly higher than that of CK during rewatereing. However, there apparently was an after-effect of water stress, as revealed by the delayed recovery of almost all of the three parameters in RAWS plants.

水分胁迫解除期间，细根获得同化物百分比仍保持在显著高于对照水平，表明水分胁迫对细根具有一定的补偿效应；尽管茎尖、粗根、韧皮部、木质部获得的同化物绝对量、相对量及分配系数均在复水后5天内完全恢复，但它们起始恢复的时间大多与复水并不同步，而是表现出一定程度的滞后，表明水分胁迫对这些器官同化物分配过程具有后效作用。

Due to restrictions made by tunnel line and underground space, tunnels are built inevitably adjacent to pile foundations of present building.

地铁工程建设多滞后修建于高层建筑、高架桥梁等已高度密集的城市环境中。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。