查询词典 deciduous

Between these extremes lie the sal -dominated moist deciduous forest of eastern India; the teak -dominated dry deciduous forest of central and southern India; and the babul -dominated thorn forest of the central Deccan and western Gangetic plain.

在印度的上述热带雨林带和针叶树林带之间，印度东部以潮湿性落叶林带的婆罗双树为主，印度南部和中部则以干旱落叶林带的柚木树林为主，印度中部的德干高原和恒河平原则以热带旱生林带的阿拉伯相思树为主。

The Farming-pastoral Zone in North China was separated into 8 Eco-regions according to the known Eco-region. The dissertation analyzed the regional differences of land use changes from three aspects on dynamic degree , land use degree and the change direction (1)On land use dynamic degree, the dynamic degree of the cropland was the highest in North warm temperate deciduous broad-leaved forest and the lowest in temperate forest steppe; forest land's was the highest in alpine meadow and the lowest in warm temperate forest steppe; grassland's was the highest in temperate forest steppe-bunchgrass steppe and the lowest in alpine meadow; other land's was the highest in North warm temperate deciduous broad-leaved forest－the Huang-Huai-hai plain and the lowest in warm temperate bunchgrass steppe.

结合已有的自然生态区的划分，将我国北方农牧交错带划分为8 个自然生态区，选取土地利用动态度、土地利用程度以及土地利用变化方向等3 个方面的指标对研究区进行了区域分异规律的研究，结果如下：（1）耕地动态度北暖温带落叶阔叶林生态区——北部山地丘陵区最大，温带森林草原生态区最小；林地的动态度高寒草甸生态区最大，暖温带森林草原丛生禾草草原生态区——东南森林草原区最小；草地动态度温带森林草原——丛生禾草草原生态区最大，高寒草甸生态区最小；其他用地的动态度北暖温带落叶阔叶林生态区——黄淮海平原区最大，暖温带森林草原丛生禾草草原生态区—西北丛生禾草草原区最小。

Dry deciduous forests represent early stages in succession and are replaced by moist deciduous forests away from water courses, which, in turn, are succeeded by tropical semi-evergreen climax forest.

沿着水路，最早出现的是干燥落叶林，后来湿润落叶林就映入眼帘，最后植被又渐渐地被茂密的热带半绿林所代替。

In the same depth, the content of total nitrogen of broad-leaved deciduous forest in 0~10 cm depth is maximum ,and the average total nitrogen of the bamboo forest is maximum in 10~20 cm and 20~30 cm. The available phosphorus content of broad-leaved deciduous forest is minimum, and the available phosphorus content of coniferous forest is minimum, the deviancy is very big, which is mainly related to the human being's activities and the way of soil usage.

同一土层深度，落叶阔叶林在0~10cm土层全氮含量最高，而毛竹林在10~20cm和20~30cm土层全氮含量都超过落叶阔叶林，使得毛竹林在土壤平均全氮含量为最高；各种森林类型中以阔叶林尤其是落叶阔叶林的速效磷含量最高，而针叶林的速效磷含量最低，空间变动性很大，这主要和人类活动及土壤的利用方式有关。

Child's deciduous teeth in the 2-year-old half-a-chai, to 6-year-old, in the final after a deciduous, up and down about a total of four laniary grow, this is the first eruption, the use of the oldest permanent teeth, which four of six age of teeth will not change.

孩子的乳牙在2岁半出齐，到6岁左右，在最后一颗乳牙后面，上下左右共长出四个大牙，这是萌出最早、使用最久的恒牙，这四颗六龄牙以后不会再换。

Birth, the permanent teeth in the deciduous tooth germ had been under, with the exception of the first molar (ie, age 6 teeth) in the neonatal period has begun to calcification, the calcification of permanent teeth is carried out in infancy, Therefore, the infant not only to protect the deciduous teeth, but also in order to obtain a fit and lay the foundation for permanent teeth.

婴儿出生时，恒牙的牙胚就已在乳牙之下，除第一磨牙（即6龄牙）在新生儿时期已开始钙化外，一部分恒牙的钙化是在婴儿期进行的，因此，婴儿期不仅要保护好乳牙，还要为获得一副健美的恒牙奠定基础。

According to the life form of species and their roles in communities, 6 species groups are used to do ordination analysis and environmental interpretation. The result suggests that:①Despite the strong man-made disturbance at lower altitude sites, the number and character of evergreen species show an change along the altitude gradient.②The rare and endangered species concentrated at two sectors along altitude gradient, corresponding to the upper and lower borders of the mountain mixed forest belt of evergreen and deciduous broad-leaved species.③The pioneer tree species concentrated on the middle and upper positions at lower elevation.④The deciduous accompany tree species show a great diversity on middle and lower position at middle and higher elevation.⑤Coniferous species differentiate along elevation and local topographical gradient.⑥Deciduous species in Quercus, Castanea, Fagus, Carpinus genus as well as coniferous species play primary community-constructing roles at different topographical position at Dalaoling region.

根据物种生活型及其在植物群落中的地位，分6个种组进行排序和环境解释，表明：①尽管低海拔地段受到强烈人为干扰，常绿种类仍显示了数量和性质沿海拔梯度的变化；②珍稀物种在海拔梯度上形成两个相对集中的区段，大致对应于山地常绿落叶阔叶混交林带的上下边缘；③先锋树种在中低海拔的中上坡位富集；④在中、高海拔的中低坡位，落叶的乔木伴生种显示了极大的多样性；⑤为数不多的针叶树种在海拔和局部地形梯度上也有明确分异；⑥它们和落叶的栎、栗、水青冈、鹅耳枥属物种在大老岭地区不同地形部位的植被中起着主要的建群作用。

Between shrub and herb layers ,the difference of each index was not significant The total richness index and Shannon-Wiener index of Phellodendron amurense plantation community were all the highest than those of the other communities.(2) The total richness index of Machilus pingii- Quercus oxyodon evergreen broad-leaved forest community, Alnus cremastogyne-Betula luminifera-Quercus oxyodon evergreen-deciduous broad-leaved forest community and Rhus potaninii- Juglans sigillata- Quercus oxyodon evergreen-deciduous broad-leaved forest community all exceeded 31 .These communities , the dominance species in their shrub layers is Fargesia rufa ,such as Betula luminifera-Rhus chinensis-Quercus oxyodon evergreen-deciduous broad-leaved forest community, Quercus oxyodon-Litsea pungens-Cornus macrophylla evergreen-deciduous broad-leaved forest community, Cornus macrophylla- Acer caudatum var.

2润楠-曼椆常绿阔叶林、桤木-亮叶桦-曼椆常绿落叶阔叶混交林、青麸杨-野核桃-曼椆常绿落叶阔叶混交林群落的总体丰富度指数均大于31；在灌木层以青川箭竹为主的群落(亮叶桦-盐肤木-曼椆常绿落叶阔叶混交林、曼椆-木姜子-梾木常绿落叶阔叶混交林、梾木-川滇长尾槭-落叶阔叶林、川西樱桃-尾叶樱-川滇长尾槭落叶阔叶林)中，各群落总体丰富度指数和Shannon-Wiener多样性指数较小，总体优势度指数较大；8种次生林群落灌木层丰富度指数均高于乔木层，乔-灌层间丰富度指数差异性检验达显著水平；乔-草层间的丰富度指数差异性检验达极显著水平，Shannon-Wiener多样性指数差异达显著水平；灌-草层间的多样性指数和优势度指数差异性检验均达显著水平。

Firstly, we performed pulpotomy for posterior teeth and pulpectomy for anterior teeth. And the experiments were divided into four groups. In the first group, nothing was put in the pulp chamber or canals. In the second group, deciduous dental pulp stem cells of mini-pig with cultured medium were transplanted into the pulp chamber and pulp canals. In the third group, deciduous dental pulp stem cells of mini-pig with lovastatin were transplanted. In the fourth group, deciduous dental pulp stem cells of mini-pig with odontoblast induction medium were transplanted.

在动物实验中，我们将迷你猪乳牙的前牙作拔髓，后牙做断髓处理，各分成四组做实验，第一组不放任何细胞、第二组加入迷你猪乳牙牙髓干细胞和培养液、第三组加入迷你猪乳牙牙髓干细胞和lovastatin，第四组加入迷你猪乳牙牙髓干细胞和odontoblast induction medium，观察三个月后，以探讨其牙齿组织是否会再生。

These six species are contrasted with three different phenological types, i.e., an evergreen, Cyclobalanopsis helferiana, two winter-deciduous, Buchanania latifolia and Symplocos racemosa, and three drought-deciduous species, Terminthia paniculata, Wendlandia tinctoria and Woodfordia fruticosa.

这6种植物包括1种常绿植物毛枝青冈， 2种冷凉季落叶( WD， winter-deciduous)植物天干果和珠仔树，3种干热季落叶(DD， drought-deciduous)植物三叶漆、红皮水锦树和虾子花。

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。