集中于

I2 I1 e#? A 76. A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sized balloon of mucus equipped with filters that capture and concentrate phytoplankton.

浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物的那种适应性变化，而尾海鞘纲动物则存活于核桃大小的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut -sizedballoon of mucus equipped with filters that capture and concentrate phytoplankton.

浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物的那种适应性变化，而尾海鞘纲动物则存活于核桃大小的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

A very specialized feeding adaptation in zooplankton is that ofthe tadpolelike appendicularian who lives in a walnut-sized balloon of mucus equipped with filters that capture andconcentrate phytoplankton.

浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物的那种适应性变化，而尾海鞘纲动物则存活于核桃大小的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sizedballoon of mucus equipped with filters thatcapture and concentrate phytoplankton.

浮游动物体内一种极特殊之进食适应性变化是蝌蚪状之尾海鞘纲动物之那种适应性变化，而尾海鞘纲动物则存活于核桃大小之黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sized balloon of mucus equipped with filters that capture and concentrate phytoplankton.(4)更多资源请浏览3edu

浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物的那种适应性变化，而尾海鞘纲动物则存活于核桃大小的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

Slow-growing medium-sized cedar of east coast of the United States; resembles American arborvitae .

美国东海岸中型雪松，生长慢；类似于美洲崖柏。注意，注意力集中

Autoradiographic studies have demonstrated that adenosine A1 and A2 receptors are expressed in the spinal dorsal horn, both on the post-synaptic SG neurons and the central terminals of the primary afferent neurons.

放射自显影的结果表明A_1和A_2受体都分布在脊髓背角，包括突触后SG神经元和初级传入神经元的中枢突，而A_1受体集中分布于胶状质。

The pattern of vertical distribution of organic matter in mangrove soil reflected the roots distribution. Surface roots were abundant in Avicennia marina forest, so organic matter of soil in top layer (0-20cm) was the most there. However, the organic matter of soil in Kandelia candel forest was the most in middle layer (20-40cm) because roots were abundant in middle layer while there were fewer roots on surface soil. Content of organic matter in bottom layer (40-60cm) was generally lower in two mangrove forests.

1红树林土壤有机质的垂直分布模式反映了根系的分布状况，在地表根系发达的白骨壤林，表层土壤有机质含量高，而在地表少根而根系多集中分布于中层的秋茄林，中层有机质含量高，下层土壤有机质含量一般较低。

Company of northward forest products is set in Burnie with south the ash research center with new Ridg-ley, main research the activity is centered in tree of ash of establish of thaw condition sow to plant, shine especially fruit eucalyptus He Laan , these two trees are planted look at present most agree with Dasimaniya grows below the air temperature condition of city northwest ministry.

北方林产品公司设在Burnie以南Ridg-ley新的桉树研究中心，将主要研究活动集中在暖和气候条件下种植桉树树种，非凡是亮果桉和蓝桉，这两个树种目前看来最适合于塔斯马尼亚州西北部的气温条件下生长。

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。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。