衰减

Compared with plant density of 150×10^4 planta/hm^2, photosynthesis attenuation rate of traditional plant density of 450×10^4 plants/hm^2 increased by 25.2~43.5 percent point, photosynthesis yield and relative electron transport rate of them decreased 2.95%~20.68% and 10.66%~18.32%, respectively, and the proportion of the reception of photosynthesis active radiation increased upper the layer of flag leaf, and decreased the proportion received lower the layer of flag leaf.

播量为450万株／hm^2处理比150万株／hm^2处理旗叶的光合衰减率提高25.2~43.5个百分点，光合量子产量和相对电子传递速率分别降低2.95%~20.68%和10.66%~18.32%，群体上层的光截获量增加，中下部受光条件较差。

The system is composed of polysilicic ions and polyaluminous ion s with the participation of polyaluminous ion s, the Si-O specific line which is inherent in the examination of infrared spectrum is gradually reducing and becoming a broad belt, the non-ion bond reactions between polysilicic ion and polyaluminous ion is proved by observasion with electron microscopy.

稳定胶体态的硫硅聚铝和氯硅聚铝是性能优良的絮凝剂，体系中含有聚硅离子和聚铝离子。红外光谱测试固有的Si—O特征峰随聚铝离子的引入逐渐衰减，变成较宽的带，聚硅离子与聚铝离子间存在着一种非离子性的健合作用，电镜摄像观察证实了这一结论

ISO prolonged the decay time and increased the total charge transfer of spontaneous inhibitory postsynaptic currents.

ISO 延长自发的抑制性突触后电流的衰减，增加它的总电荷转移。

We designed this study to confirm anecdotal observations thatneuromuscular block after a single administration of succinylcholineis characterized by fade to train-of-four or tetanic stimulation,as well as posttetanic potentiation.

本实验研究单次注射琥珀胆碱后 TOF 或强直刺激后的衰减和易化情况。

Alterations in the amplitude or kinetics of I_A may impact on the shape and duration of action pote...

三种电流在+40 mV时衰减时间常数τ分别为42.3±10.9 ms、26.3±14.5 ms(Kv4.2)和99.3±36.0 ms(Kv4.3)；海。。。

At last, natural frequencies of practical pre-stressed composite space truss are tested with pulsatory method on construction site and its damping ratio is calculated, which gives another important data for engineering design. In addition, through the model experiment of pre-stressed rectangular square pyramid composite space truss, the correctness of characteristics of internal force and the feasibility of tension recovery method are proved.

最后，在工程施工现场用脉动法测试自振频率，并借助于振动衰减曲线和半功率点法计算出预应力组合网架——钢与混凝土的混合结构体系——的阻尼比，此又为工程设计提供了一理论依据；另外，通过正放四角锥预应力组合网架的模型试验，验证了结构内力分布特点的正确性以及张力松弛法的可行性。

Considering the 45-days' zero-flow of the river, the pumpage attenuation of seepage wells was calculated.

在考虑河流持续断流45d的情况下，计算了断流条件下渗流井出水量的衰减过程，在此基础上，确定了悖牛川陕西段河谷区地下水渗流井开采方式新增允许开采量。

The main pacing ionic current of Purkinje cell is If ,a special inward current.But the decreasing of IK is not important.

浦肯野细胞的主要起搏离子流是一种特殊的内向电流If ，而IK衰减在自律活动发生原理中不重要。

Therefore, the acceleration damp in concrete, the lateral and longitudinal propagation law on the acceleration in concrete, and relationship between acceleration and slip forming quality were tested and analysed theoretically and regressively.

本文因此就滑模摊铺过程中加速度在混凝土中的衰减、横向和纵向传播规律以及与成型质量关系进行了试验、理论分析和统计回归分析。

The diffusion of MRCs was influenced by transportation. The influence factors included the connectivity of residental areas, transportation convenience degree, accessibility to destination, distance declination, as well as the influence of modern transportation.

这种扩散是交通综合影响机制作用的结果，影响因素包括与聚落的连通性、交通的便捷性、目的地的可进入性、距离衰减性以及交通现代性的影响等多方面。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。