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平均层数
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  “平均层数”译为未确定词的双语例句
     The number of nucleus layers, in the order of outer nuclear layer, inner nuclear layer and ganglion cell layer are 2. 6, 7. 6 and 0. 4 in B. bubo;
     视网膜外核层、内核层和节细胞层胞核的平均层数在依次为2.6、76和0.4层;
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  相似匹配句对
     For a sample of 38 sources we derive an average value of
     平均结果为
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     Mean Entropy
     平均
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     It was found that the average binding energies were almost the same for SiO2-WNTs having same layer numbers or length.
     SiO2-WNTs中发现当纳米管的层数或长度相同时平均结合能相等.
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To clarify the relationship between the structure of retlna and the living hablts in birds, the thickness of each retina layer, the number of nucleus layers and the photoreceptor density of retina were observed by LM and SEM in three species of predators,Bubo bubo, Athene noctua and Falco tinnunculus. The number of nucleus layers, in the order of outer nuclear layer, inner nuclear layer and ganglion cell layer are 2. 6, 7. 6 and 0. 4 in B. bubo; 3. 0, 11. 4 and 1. 9 in A. noctua; and 1. 6, 14. 6 and 1. 7 in...

To clarify the relationship between the structure of retlna and the living hablts in birds, the thickness of each retina layer, the number of nucleus layers and the photoreceptor density of retina were observed by LM and SEM in three species of predators,Bubo bubo, Athene noctua and Falco tinnunculus. The number of nucleus layers, in the order of outer nuclear layer, inner nuclear layer and ganglion cell layer are 2. 6, 7. 6 and 0. 4 in B. bubo; 3. 0, 11. 4 and 1. 9 in A. noctua; and 1. 6, 14. 6 and 1. 7 in F. tinnunculus respectively. The cone density (X±SD) in central area of retina is 19O 117±27 304/mm2 in B. bubo; 202 122±49 542/mm2 in A. noctua and 234 039±44 916/mm2 in F. tinnunculus. The rod density in peripheral area of retina is 190 422±26 595/mm2 in B.bubo; 165 800±26 408/mm2 in A. noctua and 178 015±40 165/mm2 in F. tinnunculus. In F. tinnunculus, there are cones distributed in peripheral retinal area. The density of which is 22 082±9 864/mm2. These results show that the nocturnal structure of optic organs in two species of owls and the typical diurnal characteristics of optic organ in F.tinnunculus. The diurnal characteristics of retina in A. noctua is also revealed, which corresponds to the habit of crepuscular activity of this bird. The results suggest that the structure and function of optic organs in these three species of predators are well adapted to their time patterns of activity.

为了探讨猛禽视器结构与生活习性的关系,用光镜和扫描电镜观察、测量并统计了、纵纹腹小和红隼视网膜各层的厚度,三个核层的胞核层数和视细胞密度。视网膜外核层、内核层和节细胞层胞核的平均层数在依次为2.6、76和0.4层;在小为3.0、11.4和1.g层;红隼为1.6、14.6和1.7层。视网膜中央区视雄细胞密度(X±SD)在为190117±27304个/mm2,小为202122±49542个/mm2,红隼为234039±44916个/mm2。视网膜周围区视杆细胞的密度在为190422±26595个/mm2,小为1658O0±26408个/mm2,红隼为178015±40165个/mm2。红隼视网膜周围区还有规锥细胞分布,其密度为22082±9864个/mm2。结果表明,视器的结构为夜行性特征,而小有趋于晨昏活动的特点,红隼为典型的昼行性视觉特征。3种猛禽栖息于同一生态环境内,视器的结构差异显示出其时间活动格局上的差异。

Location management,which consists of location update and location query,is a challenging topic in mobile communication.The basic location management scheme of personal communications services (PCS's) networks requires that location update be initiated whenever a mobile crosses the boundary of location areas.Obviously,this scheme is likely to waste the system resources due to the locality of mobiles' roaming.Therefore,reducing the cost of location management has become a hotspot of mobile communication.A location...

Location management,which consists of location update and location query,is a challenging topic in mobile communication.The basic location management scheme of personal communications services (PCS's) networks requires that location update be initiated whenever a mobile crosses the boundary of location areas.Obviously,this scheme is likely to waste the system resources due to the locality of mobiles' roaming.Therefore,reducing the cost of location management has become a hotspot of mobile communication.A location management schema with ring search (Ring Schema for short) was conceived,where no location update is needed.Additionally,a formula of the layer number of the location areas queried by Ring Schema was derived.According to this formula,the cost of Ring Scheme,on certain conditions,is less than both the cost of the basic scheme and that of the basic pointer forwarding schema.

位置管理是移动通信领域的一个具有挑战性的问题 ,涉及到位置更新和位置查找操作 .在现行蜂窝系统的位置管理策略 (简称“基本策略”)中 ,一旦移动台越区 ,就需要进行位置更新 .由于移动台的越区具有局部性 ,基本策略会造成系统资源的极大浪费 .因此 ,降低位置管理的费用成为移动通信领域的一个研究热点 .该文给出不需要进行位置更新的环状搜索位置管理策略 (简称“环状策略”) ,并推导出搜索位置区平均层数的一个公式 ,然后利用这一公式对基本策略、指针推进策略与环状策略的费用进行了对比研究 ,得出 :在一定条件下 ,环状策略的费用要比基本策略及基本指针推进策略小 .

Location management, which consists of location update and location query, is a challenging topic in mobile communications. The basic location management scheme(basic scheme for short) of personal communications services (PCS's) networks requires that location updating be initiated whenever a mobile crosses the boundaries of location areas. Obviously, this scheme is likely to waste the system resources due to the locality of mobiles' roaming. Therefore, reducing the cost of location management has become a hot...

Location management, which consists of location update and location query, is a challenging topic in mobile communications. The basic location management scheme(basic scheme for short) of personal communications services (PCS's) networks requires that location updating be initiated whenever a mobile crosses the boundaries of location areas. Obviously, this scheme is likely to waste the system resources due to the locality of mobiles' roaming. Therefore, reducing the cost of location management has become a hot research area of mobile communication systems. A location management scheme with ring search in order of probability (probabilistic ring scheme, for short) is conceived, where no location updating is needed. Additionally, a formula of the layer number of the location areas queried by the scheme is derived. According to this formula, the cost of probabilistic ring scheme, on certain conditions, is less than that of the basic scheme.

位置管理是移动通信领域的一个具有挑战性的问题 ,涉及到位置更新和位置查找操作 在现行蜂窝系统的位置管理策略 (简称基本策略 )中 ,一旦移动台越区 (越过位置区边界 ) ,就需要进行位置更新 由于移动台的越区具有局部性 ,基本策略会造成系统资源的极大浪费 因此 ,降低位置管理的费用成为移动通信领域的一个研究热点 给出了不需要进行位置更新的、根据移动台访问位置区的概率进行环状搜索的位置管理策略 (简称依概率环状策略 ) ,并推导出搜索位置区平均层数的一个公式 ,然后利用这一公式对基本策略与依概率环状策略的费用进行了对比研究 ,得出在一定条件下 ,依概率环状策略的费用比基本策略小这一结论

 
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