三叶的

Structural magnetic resonance imaging include lineal mesure, volume measure and volume rendered. They can detect the abnormal brain structure, especially the change of mesial temporal lobe in early onset of Alzheimer s disease. Recent studies more focused on functional imaging which can find the functional changes in brain. Prior to structural changes, functional changes happen, so it can reflect the sutile pathological process in Alzheimer s disease.

磁共振成像结构影像学主要介绍了磁共振成像线性和面积测量、磁共振成像体积测量和磁共振容积再现三方面，其研究热点主要集中于阿尔茨海默病患者异常脑结构的分布，以及特征性结构内侧颞叶，尤其是海马，杏仁核，以及内嗅皮质在结构在阿尔茨海默病早期诊断治疗中的作用。

A study on the effects of aspect ratio is presented for a transonic fan by numerical method.

摘 要：使用数值模拟方法，对比研究了三个采用不同大小动叶展弦比设计得到的高负荷跨音速风扇的性能。

In chapter 3, 83 volatile chemical constituents have been identified from the petroleum ether extracted part of ethanol extract of Debregeasia longifolia Wedd., and the relative percentages of the compounds are determined by GC method. From the extract of trichloromethane and ethyl acetate, 8 compounds have been isolated.

第三章首次对长叶水麻乙醇提取物的石油醚萃取部分分离并鉴定出83种成分，并用毛细管气相色谱面积归一化法测定了各组分的相对百分含量；从氯仿和乙酸乙酯萃取部分分离得到了8种化合物，用波谱学方法鉴定了其中2种成分。

Merr . of the determinate cultivar Ransom growing in controlled environments under 16-h photoperiods were exposed to 10, 12, 14, 15, and 16-h photoperiods upon expansion of either the two primaries or fifth trifoliolate leaf (V1 and V6 developmental stages, respectively) to determine the influence of plant size on sensitivity to photoperiod.

Merr 。，分别进行 10 ， 12 ， 14 ， 15 ，与16 小时不同时间的处理，从2片真叶到第五三出复叶(分别为V1和V6各发育阶段)，以确定植株大小对光周期敏感性的影响。

The two wettish powders of Bordeaux nutritional protective powder and Kocide were evidently effect on pH value, effective iron content and effective copper content of the calcareous soil.

三种不同的波尔多液营养保护剂以BNPP-Fe-Zn效果最好，能显著提高番茄不同生长期根茎叶中铁、锌和铜的含量，同时，成熟期番茄叶片中全铁、活性铁和全锌含量差异显著，与CK相比，分别提高了78.7%-104%、65.1%-173%和

The water soluble carbohydrate content was reduced during the whole ensiling period, but was not decreased significantly from the 5th to 15th day.

试验三 利用体外产气法评定凤眼莲茎叶草粉分别替代不同比例（100%、67%、33%、0%）的青贮玉米、羊草和苜蓿的发酵动力学参数及有机物消化率。

The most effective stage in which LAI,LADand NAR had effects on grain yield was in about 15 days after silking stage. Relations of yield components and photosynthetic characteristics were also analysed.

在产量构成三要素中，单位面积穗数与拔节至吐丝期间的叶面积系数关系最为密切；穗粒数和千粒重则主要依赖于大喇叭口期或吐丝期以后的同化产物积累。

The changes in cotyledons were observed in the third generation of the plants.

除绝大多数为正常的2片大小相等的子叶外，还出现了少数三子叶、漏斗状子叶和联生子叶。

Thirdly, the acrylic rosin was synthesized by the addition reaction from gum rosin andacrylic acid. The levo-pimaric acid was converted into acrylic pimarie acid throughDiels-Alder addition with acrylic acid. The abietic-type acids in the gum rosin were inisomerization balance under high temperature, and the abietic acid and palstric acid would beconverted into levo-pimaric acid and reacted in the later type.

第三，通过脂松香与丙烯酸加成合成了丙烯酸松香，该反应是左旋海松酸与丙烯酸发生Diels-Alder加成反应生成丙烯海松酸，由于脂松香中的枞酸型树脂酸在高温下处于异构化平衡状态，因此随着反应的进行枞酸、长叶松酸等会异构化为左旋海松酸参与反应。

A high-climbing woody vine, native to eastern Asia and having three-lobed deciduous leaves.

爬山虎：一种攀高的蔓生藤本植物，原产与东亚，具有定期脱落的三裂叶。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。