最大变化

Based on the comprehensive analysis of five above-mentioned physiological and biochemical indexes of Alstroemeria spp.,it shows that No.1 treatment is superior to any other treatment; while both No.3 and No.8 treatments are inferior to control.

综观上述5项生理生化指标，以保鲜剂配方①变化最为平稳，且优于其他处理；而保鲜剂配方③和⑧变化最大，保鲜效果低于对照。

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

The richness center of the Theaceae plant species under study is located in the mountainous area of north Guaugdong (22.5°N, and 112~115°E). These plants species exhibited significant longitudinal difference (P=0.0012), and latitudinal variation (P=0.0049). Canonical Correspondence Analysis showed the distribution of plant species could be explained by caloric factors and moisture factors, and MAMI (mean annual minimum temperature) was the key factor determining the distribution pattern of Theaceae plant species richness in the study area.

对125种植物、72个网格和6个环境因子进行典范对应分析表明：CCA排序轴第1轴主要代表温度的变化梯度，第2轴主要代表水分的变化梯度，说明水分、温度等因素共同影响山茶科植物在广东的生长和分布，其中年均最低温度是影响广东省山茶科植物丰富度水平地带性格局的最大因子。

As the track space increasing, the holding power which flexible holding parts act on sugarcane is dropping off. As the canvas layers and length of flexible holding part increasing, the track space is also increased when flexible holding parts act on sugarcane same holding power. As the length of flexible holding part increasing, the rate of slope of holding power following the track space to change would be decreased, so holding power would vary slowly. The holding power has a better linear relationship with the track space. Holding sugarcane stalk on knot or not on knot, sugarcane stalk having leaves or without leaves, the holding power would have not significant difference. Considering the structure of device and stress of sugarcane, 4-layers canvas conveyer belt was used as flexible holding part, while its length is 120mm, 160mm, or 200mm, the corresponding maximum track space is 135mm, 183mm, or 235mm. Experimental investigation of sugarcane windrowing was done on the arc-track-type flexible holding and conveying test mechanism.

随着轨道间距的增大，柔性夹持元件施加给甘蔗的夹持力逐渐减少；施加给甘蔗相同的夹持力，随着柔性夹持元件帆布帘层数和长度的增加，对应的轨道间距增加；随着柔性夹持元件长度的增大，柔性夹持元件施加给甘蔗的夹持力随轨道间距变化的斜率减小，夹持力大小的变化越缓慢；柔性夹持元件提供的夹持力与轨道间距均呈线性关系；柔性夹持元件夹在甘蔗节上还是不夹在节上，甘蔗有叶还是无叶，其施加给甘蔗的夹持力无显著差异；从夹持输送装置结构以及甘蔗的受力情况来考虑，选择4层帆布帘输送带作为柔性夹持元件更能平稳、柔和地夹持输送甘蔗，4层帆布帘120mm、160mm、200mm长的柔性夹持元件夹持甘蔗所需最大轨道间距为135mm 、183mm、235mm。

Besides, the constraints such as the change rate of control variable are also considered.

其中包括：压气机喘振裕度限制，最高燃气温度限制，燃气发生器最高转速限制，动力涡轮最高转速限制，最大扭矩限制，燃烧富油熄火，贫油熄火限制等，另外还要考虑到工程实际中控制作用量的变化速率和变化幅度限制等约束条件。

There were many factors influencing the development of the stage, such as the development of merchandise economy, social changes, especially populace continual fluxion, people fusing, consuetude changing.

魏晋南北朝时期馆驿机构的发展变化，受当时商品经济发展、社会生活嬗变尤其是人口持续大幅流动，以及民族融合加强、生活习俗发生变化等状况影响最大。

During the third period (from 1937 to 1942), Li Jianwu came out with his second wonderful work "Ju Hua Second Volume". Compared with the "Ju Hua Volume","Ju Hua Second Volume" changed its length, style and character manner. The remarkable change is reflected in the choice of the critical object, and the continuation and development of literary view. The critical object was changed form "Jing Group" youth to "left wing" literature youth. The highlight of criticism not only preserved the need to the "harmoniousness" and "continency", but also further noticed the elements of "era" and "force". From such a choice full of antinomy and quandary, it is not hard to conclude a thinking logic in accord with "era" color.

第三阶段从1937年到1942年，李健吾紧接着捧出第二束奇葩--《咀华二集》，与《咀华集》相比，《咀华二集》在篇幅、文体、文字风格等方面都发生了变化，而最大的变化当属评论对象的选择以及相应的文学观的延续与发展，评论对象由前一时期的"京派"青年作家转向左翼文学青年，批评视点除继续保留对"和谐"与"节制"的要求外，进一步注意到"时代"和"力"的因素，从这一充满矛盾与困惑的选择中不难窥见出一种合乎"时代"色彩的思维逻辑。

In this problem, the main difficulty is that the variation of border electric potential is not sensitive to the variation of conductivity in the field. So far, there is not an effective method to solve the problem.

在低频电流场逆问题的计算中，最大的问题在于边界电位值的变化对场域内部电导率的变化不敏感，到目前为此，对此问题还没有一个公认的有效的解决办法。

Density of gully in this area is so high that it can reach 20km/km2; the erosive intensity varies with the different gully developmental stage; at the most active and densely gullied area, it has the most erosive intensity.

研究表明，包括切沟在内的黄土丘陵区的沟谷密度值可高达20 km/km~2以上；黄土冲沟的发育阶段不同，其侵蚀强度也相应变化；切沟发育最活跃和最密集的地段，其侵蚀强度也最大。

Grasping ability is a problem when the grasp posture of the robot is changing. This paper discusses grasping ability of the multifingered robot hand. Using screw theory and BP neural network optimize the joint angle of the finger, Seeking the best grasp posture that the multifingered robot hand can withstand the largest external wrench.

论文针对排爆机器人在作业时其姿态的不断变化对抓取爆炸物能力的影响，寻求有利于提高抓取能力的最优手指关节角，以及多指手在不同的姿态下能抓取爆炸物的最大重量，并得出抓取能力最差的位姿。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。