查询词典 the last stages

The fluctuation of whitefly on poinsettia was studied by investigated the number of whitefly during different stages of growth period of poinsettia. The optimization comprehensive measures were studied by comparing the control effect on whitefly during different stages by different methods.

方法］调查&一品红&不同生育生长期内烟粉虱的数量，研究其消长；比较不同处理在不同时期对烟粉虱的防治效果，研究优化综合防治措施。

It is Investigated that the effects of vitamin C and E on M. nipponense in different molting stages by measuring oxygen consumption rates, ammonia-N excretion rates and activities of antioxidant enzymes(SOD,CAT,GSH-Px,GST,GR) in three groups which are control group,Vc group andgroup.1. The oxygen consumption rates are high in stages D2 and A, but low in stage C.

设立三个试验组：对照组，V_C组(200mgV_C／kg)和V_C+V_E组(200mgV_C／kg+400mg V_E／kg)，以上述分期结果为标准，测定了三个试验组的日本沼虾在蜕皮各时期的耗氧率，排氨率以及抗氧化酶(超氧化物歧化酶SOD，过氧化氢酶CAT，谷胱甘肽过氧化物酶GSH-P_X，谷胱甘肽转移酶GST，谷胱甘肽还原酶GR)活性的变化，结果如下： 1。

The Eu of basal dressing was higher, in,he soil with low N supply in the early stages of rice growth, and the same was ture for top dressing when soil N supply was low in later stages.

作者于1987年在二种供氮特性不同的土壤上进行盆栽试验，目的是研究'。N标记的家兔粪便和硫酸按不同配合施用，对水稻增

The highest SMBN (97.8 mg/kg) was found in the treatment of Chinese milk vetch. During early stages of rice growth, winter ryegrass treatment significantly increased SMBC, but not the late stages. In conclusion, winter crops could improve soil ecology environment and soil microbial diversity.

冬季作物对稻田土壤微生物商的影响，随着水稻生长发育进程有不同程度的变化，黑麦草处理在早稻整个生育期高于冬闲田。

Shading experiments were designed according to low light intensity problem caused by intercropping system of peanut with maize or wheat et al. Fenghua1 and Fenghua2 were adopted in the experiment of four light intensity levels (CK in which the plants were grown under natural light, 27% shading, 43% shading and 77% shading), which carried out at three growth stage using black sunshade net. And the three stages were seedling phase, pod-setting phase and pod-maturing phase. The aim of this study was to investigate the effects of low light on the photosynthetic characteristics, luminous energy distribute of PSⅡ, RuBPCase activitiy, plant morphogenesis, dry matter production, pod yield and quality of peanut at different stages, defined the relationship between dry matter accumulation and PAR, relationship of efficiency for solar energy utilization and PAR, and then set up the ...dry matter production and yield formation model on the basis of the experimental data.

针对花生与玉米、小麦等作物间作、套种造成遮光问题，选用大花生品种丰花1号和小花生品种丰花2号做为供试材料，在花生苗期、结荚期和饱果期分别用不同透光率的遮阳网进行遮光处理模拟弱光条件，设置自然光、遮光27%、遮光43%和遮光77%四种光强水平，研究了光强处理对花生光合特性、光系统Ⅱ光能分配、RuBPCase活性、植株形态建成、物质生产和产量以及品质的影响，明确了不同时期干物质积累及光能利用率与光合有效辐射的关系，以此为基础采用2种方法建立了花生干物质生产动态模型和花生产量形成模拟模型，并对各模型的模拟精度进行了比较。

It is shown that the M×N ChG beams in turbulent undergo three stages of evolution with increasing propagation distance,and turbulence accelerates the evolution of three stages.The turbulence results in a spreading and degradation of the maximum intensity in the far field.But β-parameter decreases with increasing beam numbers M,separate distances xd and beam parameter δ.And there exists optimal values of xd and δ,and SR of the corresponding M×N ChG beams reaches its maximum.

研究表明：在湍流大气中，双曲余弦高斯列阵光束的传输将经历三个阶段的变化，并且湍流使得光束传输经历三阶段的进程加快；湍流导致双曲余弦高斯列阵光束扩展、最大峰值光强下降，但是，β参量随光束数目M、相邻子光束间距xd和光束参量δ的增加而减少，即光束扩展受湍流的影响减小；并且，存在最佳xd和δ值使得Strehl比取得极大值。

There are two issues in counseling groups related to the stages of group process. First, much of the existing literature on conceptualization of group stages is borrowed from theory or research of psychotherapy group and T-group; second, the lack of experimental evidence or the lack of theoretical basis for conceptualizing the stage development of a counseling group.

现有文献在谘商团体的阶段论有两个待解决的问题：其一，多数有关团体阶段划分借用心理治疗团体或T－团体的理论或资料，由於这些团体性质与目标不同，是否可以移用值得再思；其二，有些阶段划分凭据实务经验，既无实证研究证据，也缺乏阶段发展的理论依据。

There are six stages of the city development:the grade system of county cities in Han dynasty, the army town system in North and south dynasty,the system of army-and-administration cities in Tang dynasty,the system of freakish army cities in the frontier in Song dynasty,the low tide stage of city development in Yuan dynasty,and the system of dense army cities in the frontier in Ming dynasty.There are some characteristics in the development stages in the study area.

城市发展大致分为六个阶段：汉代郡县为主的城市体系发展时期、魏晋南北朝时期军事重镇为主的城市体系发展时期、唐代军城和郡县为主的军政城市体系演化时期、宋代边境城寨军事城市体系畸形发展时期、元代城市体系发展的低潮时期、明代沿边密集军事城堡体系发展时期。

In the last a few years, the differential solution of wave equation was hold up by the condition of computation. Kirchhoff integral method rose in the initial stages of the ninetieth decade of last century.

前几年波动方程微分解由于受计算条件的限制而难于在地震资料处理过程中发挥作用，上世纪90年代初发展起来的克希霍夫积分方法，因本身存在的缺陷也难于在深层地震资料处理中取得新的突破。

If the result is again a draw or if there are no individual Time-Trial stages the placings obtained in each stage shall be added and, as a last resort, the place obtained in the last stage ridden shall be taken into consideration.

如果总时间还是相同，或是比赛中没有个人计时赛，就将运动员在分段所得的名次进行累加以决定胜者；如果还相同，就以最后一段比赛名次决定。

Wenxing consistently adheres to the principle of "trict Management,All Member Participation,Quality First,Users Foremost" and follows the business philosophy of excellent quality,highly active and pursue excellence,thus outdoing its counterparts in terms of technology,production scale and administration.

文兴一贯秉承&严格管理、全员参与、质量第一、用户至上&的企业方针，遵循优质、高效和追求卓越的经营理念，从而实现在技术上、规模上、管理上处于同行领先地位。

The left atrium of the guinea pigs was innervated by the two afferent system.

豚鼠左心房受心脏的两个传入系统的双重支配。