叶的

This study will assess elementarily the security and effectiveness of The root and leaf of Panicled Fameflower through the experimental studies on their pharmacodynamics and acute toxicology, provid possibly theorems and experimental foundations for Panicled Fameflower' s edibleness, planting and study.

本课题通过土人参根、叶的药效和急性毒性实验研究，对土人参根、叶治疗"脾虚"证、土人参叶"解毒消痈"的疗效和部分作用机制做出初步评价、并取得土人参根、叶急性毒性数据，为保健中药蔬菜土人参的食用提供客观的药效学和急性毒性的实验依据，以促其进一步推广应用、种植、研究。

By determination of CHL Contentand MDA content of the flag leaf show, tr4 per bunch have obvious downwardtrend, tr3 is the second and the tr2 is the minimum: MDA content of flagleaf shows, tr4＞tr3＞tr1＞tr2.(2) Luliangyou 996 with super early rice in four different transplantingdensities construct four different population traits.

对4种不同栽插本数下稻株剑叶的叶绿体与丙二醛含量的测定表明，4种不同栽插本数剑叶叶绿素的含量，以4本栽插剑叶叶绿素含量的下降趋势最为明显，3本栽插其次，2本栽插最低；而剑叶丙二醛含量依次为，4本＞3本＞1本＞2本。

Amongleaves of various stalk positions,flag and penult leaf had the highestassimilating capacity.

不同叶位间比较，以旗叶和倒二叶的同化功能最强，占单茎同化量的60％以上，倒三叶以下同化能力迅速衰减。

The results indicate seawater concentration has no effect on absorbency, pH, relative density, dry matter and water contents in Aloe vera leaves. While, seawater stress causes increased MDA and membrane penetration, decreased phytochroms, prolines and NO_3~--N. It is beneficial to plant growth when irrigation was done with 10% seawater, because of higher ratio of K~+/Na~+ and lower ratio of Na~+/Ca~(2+). In addition, the polysaccharide contents in Aloe vera leaves increase twice and triplication under 25% and 50% seawater irrigation respectively, the barbaloin contents increase over triplication in var. 75% seawater and over twice in var. 50% seawater and var. 100% seawater. However, when seawater concentration exceeds 25% the growth of plant was inhibited, biomass decreased, flowering time was deferred, Ca~(2+) content decreased caused by Na~+ accumulation in leaves.

结果表明：在海水胁迫下，库拉索芦荟全叶汁的吸光度、酸度、相对密度、总固形物和水分含量总体上受海水浓度的影响不大；但芦荟叶的丙二醛含量和质膜透性增加，叶绿体色素、脯氨酸和硝态氮含量减少；在10％海水浇灌下，芦荟叶细胞具有较高的K~+／Na~+比和较低的Na~+／Ca~(2+)比，对库拉索芦荟的生长有一定的促进作用；在25％海水和50％海水浇灌下，芦荟多糖含量提高了2-3倍；在75％海水浇灌下芦荟甙含量增加了3倍多，在50％海水和100％海水灌溉下，其含量也增加了2倍多；当海水浇灌浓度超过25％后，库拉索芦荟的生长明显受到抑制，生物量降低，抽苔期推迟，同时，海水浓度的增加也导致芦荟叶中累积大量Na~+，从而使得芦荟叶中Ca~(2+)含量降低，但Mg~(2+)并没有受到海水浓度的影响；用浓度低于75％的海水浇灌库拉索芦荟可以降低剖面深度在0-100cm之间的土壤盐度；其抗氧化保护酶中超氧化歧化酶的酶活力相对保持稳定，过氧化物酶的酶活力在10％海水浇灌下明显提高，随后则下降，而过氧化氢酶的酶活力则随海水浓度的升高而下降。

Secondly, the air temperature and airflow of leaf-layers also compositively affect the biochemical changes of leaves during the whole fine-manipulation course, and the effect on biochemical reaction of the former is more important and obvious than that of the latter.

青叶的生化变化受到叶层气温、气流状况等环境因素的综合影响，从总体上看，叶层气温对生化反应的作用比叶层气流更为重要和显著。

This study will assess elementarily the security and effectiveness of The root and leaf of Panicled Fameflower through the experimental studies on their pharmacodynamics and acute toxicology, provid possibly theorems and experimental foundations for Panicled Fameflower' s edibleness, planting and study.

本课题通过土人参根、叶的药效和急性毒性实验研究，对土人参根、叶治疗&脾虚&证、土人参叶&解毒消痈&的疗效和部分作用机制做出初步评价、并取得土人参根、叶急性毒性数据，为保健中药蔬菜土人参的食用提供客观的药效学和急性毒性的实验依据，以促其进一步推广应用、种植、研究。

Based upon the ecoanatomical method, leaf anatomical characters of eleven populations of six evergreen species (Cyclobalanopsis glauca, C. myrsinaefolia, C. gracilis, Castanopsis sclerophylla, C. eyrei and Lithocarpus glaber) from the eastern subtropical area of China were analyzed and compared with SPSS, DCA and TWINSPAN. The results are: 1. Although the leaf structures of the eleven populations still belong to the mesophyll type, they all express the trend of xerophilization. 2. There are some differences in leaf anatomical characters among populations, species and genera, which occur as the results of their adaptation to different habitats. 3. Different leaf anatomical characters have different variations among populations, species and genera, of which leaf thickness and palisade tissue thickness (considered as ecological adaptation characters) have greater variation than sponge tissue thickness, lower cuticle thickness and lower epidermis thickness (as systematical evolution characters). 4. The leaves of C. sclerophylla and C. glauca with thicker lamina, palisade tissue and cuticle (a multilayered upper epidermis in C. sclerophylla) are thought to better adapt to their dry habitat. The leaves of C. eyrei with thicker sponge tissue, although characterized by a multlayered upper epidermis, adapt to their humid and warm habitat. The leaves of C. myrsinaefolia and C. gracilis characterized by a thinner lamina, a less palisade tissue and a moderate cuticle thickness adapt to the humid and cool habitat in a middle mountain.

选取亚热带东部替代分布明显的壳斗科6种常绿树种（青冈、小叶青冈、细叶青冈、苦槠、甜槠和石栎）的11个种群叶片进行生态解剖，并用SPSS， DCA和TWINSPAN比较分析，结果表明：①尽管6种11个种群叶的结构仍属中生叶型，但有着不同程度的趋旱适应；②叶的解剖性状在属间、种间和种群间均存在着不同程度的差异，这是它们适应各自生境的结果，青冈和石栎的种内差异较大，反映出它们对环境变化有较强响应能力；③叶片的不同解剖性状在属、种类和种群间的变化并不同步，其中叶片和栅栏组织厚度等性状差异突出，反映它们更易受环境的饰变，是生态适应性状，而海绵组织、下角质膜，特别是下表皮厚度等性状差异较小，显示出这些性状的稳定性，可以认为是系统演化性状；④苦槠、青冈具有较厚的叶片、栅栏组织、角质膜和发达输导和机械组织，苦槠还具有复表皮，表现出对旱化生境的适应；甜槠尽管具有复表皮和较厚的叶片，但这是海绵组织增厚的结果，是对中生生境的适应；小叶青冈和细叶青冈具有较薄的叶片和栅栏组织、角质膜厚度居中等特点，可能是对中山凉湿生境的适应。

Clover with one leaf,make a prayclover with two leaves,light a hope

一叶的三叶草是祈求；二叶的三叶草是希望

Positive correlation between verbal fluency and FA in both anterior limbs of internal capsule, left external capsule and the white matter of left occipital lobe were demonstrated by bivariate correlations.

结论DTI显示额叶癫疴患者右侧额叶MD值明显增高、右侧外囊、尾状核和双侧丘脑的FA值明显减低，提示额叶癫痫患者在上述区域可能存在细微病理改变，执行功能可能超出前额叶的范围。

A sugarcane leaf shattering and returning machine which adopted profiling pick-up device was designed to make it possible that the gap between flail knife and furrow is larger than the ridge height.

设计了一种采用仿形集叶器的甘蔗叶粉碎还田机，使甩刀离地沟间隙可超过垄高，较好地解决了普通甩刀无法捡拾沟底甘蔗叶的问题，田间试验结果表明：单位时间燃油消耗量降低约7%，捡拾率提高约4%，粉碎率提高约11%，粉碎后长度由25 cm降低到20cm，满足了甘蔗叶粉碎质量和生产农艺要求。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。