查询词典 deciduous

A deciduous shrub or small tree of eastern North America, having small purplish flowers, pink fruit, and scarlet arillate seeds.

火树一种北美东部落叶灌木或小树，具有小的略紫色花、粉红果实和红色具有假种皮的种子

Any of various deciduous shrubs of the genus Aronia in the rose family, native to eastern North America and having clusters of small white or pinkish flowers and tiny red to black applelike fruit.

美国稠李灌木原产于北美洲东部的任何一种蔷薇科北美沙果属的落叶灌木，开有一簇簇白色或近粉红色的小花且结有红色至黑色类似苹果的小果实

Culm sheaths deciduous, papery to subleathery; ligule usually conspicuous; usually auricled with long bristles; blade usually recurved or reflexed.

竿箨脱落，似纸的到近革质；叶舌通常显眼；通常auricled具长刚毛；通常的叶片下弯的或反折。

Appendages at top of connectives narrowly triangular, less than 1 mm, anthers lanate at base adaxially, apex barbate; stipules later deciduous; petioles 2-5 mm.

药隔狭三角形，不到1毫米，花药具绵状毛的在正面基部的附属物在顶端，先端具髯毛；晚的托叶脱落；叶柄2-5毫米 3 R。

The species diversity of Dipentodon sinicus communities in Yushe National Forest Park of Guizhou province was studied based on the quadrate method. The results showed that Rosaceae, Ericaceae, Betulaceae, Fagaceae, Theaceae, Lauraceae, Caprifoliaceae, Cornaceae were the dominant families in D. sinicus communities of Yushe National Forest Park. In the 10 sample plots, there were 8 which were absolutely dominated with D. sinicus population, the importance value came up to 135.69 on average, and it was far higher than the others. For D. sinicus communities, the abundance index (2.847), Simpson index (0.601), Shannon-Wiener index (1.523), probability of inter-specific encounter (0.601) and species evenness (0.569) of the tree layer were lower than those of the shrub layer (5.580, 0.830, 2.377, 0.829, 0.672, respectively) on the whole. It markedly showed a species diversity characteristic of the mixed broadleaved evergreen and deciduous forest in middle subtropics. In the 10 sample plots, the species diversity level of Q1 was the highest, followed by Q3, Q5 and Q6 was the lowest.

摘要运用样方法对贵州省玉舍国家级森林公园稀有保护植物十齿花群落的物种多样性进行了研究，结果表明：玉舍国家级森林公园十齿花群落以蔷薇科、杜鹃花科、壳斗科、桦木科、山茶科、樟科、忍冬科、山茱萸科等为优势科；10个样地中有8个样地以十齿花种群占绝对优势，其平均重要值高达135.69，远远高于其它种群；十齿花群落乔木层物种丰富度为2.847、Simpson指数为0.601、Shannon-Wiener指数为1.523、种间相遇机率为0.601、均匀度指数为0.569，总体上均小于灌木层(分别为：5.580、0.830、2.377、0.829、0.672)，表现为较明显的亚热带常绿落叶阔叶混交林的物种多样性特征。10个样地中，Q1的物种多样性程度最高，Q3次之，Q5和Q6最小，多样性程度最低，10个样地的物种多样性排序为Q1＞Q3＞Q9＞Q7＞Q2＞Q4＞Q10＞Q8＞Q5＞Q6。

Bignoniaceae, Euphorbiaceae, and Mimosaceae contained the most deciduous species. Cratoxylum cochinchinens, Canthium horridum, and Glochidion fagifolium were the most abundant species, while Liquidambar formosana, C. cochinchinens, and G. f agifolium had the highest basal area.

其中紫葳科、大戟科、含羞草科是含落叶树种最多的3个科，黄牛木、猪肚木、山柑算盘子是多度最高的3个落叶树种，枫香树、黄牛木、山柑算盘子是胸高截面积最大的3个落叶树种。

A deciduous Asian tree, widely cultivated and naturalized in the southern United States and having bipinnately compound leaves, clusters of purplish flowers, and yellow, globose, poisonous fruits.

楝产于亚洲的落叶乔木，，有二回羽养复叶、紫色花簇以及黄色球形、有毒的果实，在美国南部被广泛引种栽培

Corolla urn-shaped, campanulate, or tubular, 3--5(--7)-lobed, deciduous.

坛状，钟状的花冠，或管状，浅裂，落叶的3-5(-7)。

Capparis Spinosa L is a winter-deciduous medical shrubs with the high ability to drought resistance.

：刺山柑是一种冬季落叶的、抗旱能力比较强的药用植物。

There were only 94 vascular plant species, belonging to 50 family and 75 genera. The dominant species in the communities were deciduous broadleaf species Liquidambar formosana, Robinia pseudoacacia, Ailanthus altissima, Acer buergerianum, and Celtis sinensis, evergreen broadleaf species Cinnamomum camphora and Elaeocarpus glabripetalus, and Phyllostachys heterocycla. Robinia pseudoacacia+Cinnamomum camphora community had the highest Shannon-Wiener index (1757) and Phyllostachys heterocycla+Acer buergerianum community had the highest Simpson index (0163), but no consistency was observed between the curves of H and D. For vertical structure, most communities had no significant understory stratification.

结果表明：辰山植物区系以泛热带和北温带占优势，具有典型亚热带和温带成分交汇和南北植物分布交错特征；但保育区内种类单一，维管束植物仅有49科69属94种；主要群落是以枫香、刺槐、臭椿、三角枫和朴树等为优势树种的落叶阔叶林，以香樟和秃瓣杜英等为优势树种的常绿阔叶林，以及毛竹林；物种多样性普遍较低，Shannon-Wiener多样性指数最高为刺槐+香樟群落（1.757），Simpson均匀度指数最高值为毛竹+三角枫群落（0.163）；多样性指数曲线和均匀度指数曲线不具有一致性的变化趋势；多数群落垂直结构中无明显林下分层现象；演替前期的落叶乔木种群后续个体不足。

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。