吸收态

Basial nitrogen fertilizer of traditional treatment can beget leaching loss of soil nitrate before top-dressing, but top-dressing beget hardly the leaching loss because cotton assimilated large numbers of nitrogen for accelerated growing.

传统处理施肥量高，基肥比例大易引起土壤硝态氮的淋移损失，损失数量与棉花生育时期有关，棉花生育期追氮由于棉花对氮素的大量吸收，硝态氮淋移损失相对较小。

So the experiment compared uptake kinetics of NH4(superscript +) and NO3(superscript -) of three aquatic macrophytes Jussiaea stipulacea Ohwi, Elodea nuttallii, Eichhornia crassipes.

该研究中比较了3种水生植物黄花水龙、伊乐藻、凤眼莲对于铵态氮和硝态氮吸收动力学特征。

Results are summarized as follows:(1) The absorption property of CdSe nanoparticle colloid under magnetic field was investigated by magnetic circular dichroism measurement, which proved the discrete energy states in CdSe nanoparticles due to size confinement effects.(2) Aggregation of small nanoparticles was usually observed under HRTEM measurements. In order to obtain HRTEM images of well dispersed particles, surfactant molecules were assembled on the surfaces of mercapto acetate stabilized CdSe nanoparticles.

主要内容如下：（1）用磁圆二色吸收谱测试研究了CdSe纳米颗粒的水溶胶在磁场中的吸收性质，验证了CdSe纳米颗粒中由于量子限制效应而存在的分立的能态；（2）用高分辨透射电镜观察到纳米颗粒的团聚，在颗粒表面接枝上含长链烷烃的表面活性剂分子，使颗粒有效的分散，解决了纳米颗粒团聚的问题。

Corn seedling were grown for 5 harvests in pot experiments to evaluate potassium supplycapacity of the soils.Results indicated that when soil avaliable potassium decreased,the dryplant matter was firstly affected,secondly was the total uptake of potassium by plant,then was thepotassium content in plant.Exchangeable,nonexchangeable and mineral potassium wereavaliable for plant,but the contribution of each potassium form was depended on soil types.

本文在研究褐土、潮土不同层次土壤的供钾特性、土壤各形态钾素的动力学行为以及小麦根系对钾素的吸收动力学特征的基础上，以玉米幼苗从土壤中的吸钾量为对照，考察了土壤钾素动力学特征与土壤钾素生物有效性的关系，运用热力动力学理论建立了土—根系统中的钾素能态链，并确立了土壤钾素生物有效性的能态指标。

By employing rate equations which is used to describe a sixlevel system, the process of Reverse Saturable Absorption of organic polymers have been analyzed theoretically.

从描述有机材料分子与入射激光相互作用的动态速率方程出发，建立了有机材料稳态，动态和瞬态的反饱和吸收理论。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

When RN was 25%∶75%,N and amylum were lowest,and volatile base were highest.With 100% ammonium,reducing sugar,Cl and amylum were highest,and K/Cl,nicotin and K were lowest.With 100% nitrate,the content and uptake of N,K and Cl were the lowest;3 Any RN,the content of nicotin,N,K,Cl and amylum satisfied the demand of high quality tobacco,reducing sugar was on the other way round.

RN为25%∶75%时，挥发碱含量最高，总氮、淀粉含量最低。100%铵态氮时，还原糖、氯含量、淀粉的含量最高，碱、钾、钾氯比最低，同时显著地降低烤烟的等级结构。100%硝态氮时，总氮、钾、氯在烟叶中的含量最低，吸收总量也最少，同时产量、产值、均价也处于最低水平；3本试验的任何RN下，烟碱、总氮、钾、氯、淀粉的含量均符合优质烟叶要求，而还原糖相反。

However, in recent years, many researches had showed that higher plants can take up organic nitrogen, particularly amino acid nitrogen.

然而，近年来越来越多的研究表明植物可以直接吸收有机态氮，特别是氨基酸态氮。

The results show that the BST is a nice nitrogenous fertilizer resources and to some extents,equal and superior to traditional nitrogenous fertilizer urea and sulphuric acid ammonia.

结果表明，BST是很好的氮肥资源，等同于或某种程度上优于尿素和硫酸铵。对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca，Mg，K等养分和生长发育的影响与常规氮肥相似。

Vegetable's roots absorb NO3- mainly by the way of active absorption. Under retro-electrochemical gradient(170-250mv), NO3- is absorbed into the interior of root through symplast in a state of ion.

蔬菜根系以主动吸收为主的方式吸收硝酸根离子，在逆电化学势梯度（170~250mv）下，硝酸根离子以离子态通过共质体途径进入根部内部。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷