白种的

Vocal characters of 7 kinds of cranes (Demoiselle Crane,Black-necked Crane,Eurasian Crane,White Crane,Hood Crane,White-naped Crane,Black-necked Crane,Red-crowned Crane) were analysed in this article.

本文通过对国内大量分布的这7种鹤(蓑羽鹤、白鹤、白枕鹤、白头鹤、黑颈鹤、灰鹤和丹顶鹤)的鸣声的分析，找寻可以反映这些鹤类亲缘关系的同源鸣声，并利用鸣声的主要物理特征建立这7种鹤的系统分类关系。

While relations between the two sides are still waiting to thaw, the area has become a winter migrating post for rare white-naped cranes, a haven for one-third of only 2,500 red-crowned cranes left in the world and home to almost 200 other species of birds and 52 species of mammals, including Korean water deer and Amur goral.

当双方的关系仍在等待解冻，这片地区已经成了珍惜的白枕鹤冬季迁移地，这里庇护世界目前尚存的2500种丹顶鹤中的三分之一，还是200多种其他鸟类和52种哺乳动物的家园，包括韩国獐和阿穆尔斑羚。

Not the stuff of beauty, not even the body of beauty, but a lambency, the warm, white flame of a single life, revealing itself in contours that one might touch: a body!

那不是美的物质，更不是美的肉体，而是一种光芒，一个寂寞生活的温暖的白光，显现而成的一种可触摸的轮廓：肉体！

There were lesser and fewer in commercial species and its numbers in the cover net, and the sum of Nemipterus virgatus , Saurida tumbil , Upeneus bensasi , Trachinocephalus myops comprised 95.4% in number and 86.0% in weight of sample catch in the cover net,respectively. The high percentage of juvenile commercial species that were undersized in the codend showed 30.3 mm square mesh codend had more serious damage to most juvenile commercial species, approaching or exceeding 50% in percentage of juvenile species which body length is smaller than fishable size- Trichiurus haumela, Priacanthus tayenus , Navodon tessellatus, Argyrosomus argentatus, Nemipterus bathybius and so on, even exceeding 90% in percentage of juvenile Sepia spp, Loligo spp and Parastromateus niger. In particular, 50% selection lengths ( L 0.5) caught Saurida tumbil and Nemipterus virgatus were smaller than their minimum fishable size.

结果表明，这种规格的方目网囊平均尾数逃逸率为29.76%，平均重量逃逸率为8.46%；出现在套网中的经济种类少、数量少，条尾绯鲤、金线鱼、多齿蛇鲻、大头狗母鱼4种鱼的尾数和重量分别占套网抽样渔获的95.4%和86.0%；网囊中带鱼、长尾大眼鲷、黄鳍马面鲀、白姑鱼、深水金线鱼等鱼种的体长小于可捕标准的个体尾数比例均超过或接近50%，枪乌贼、乌贼、乌鲳等幼鱼尾数比例达90%以上，多齿蛇鲻和金线鱼50%选择体长均未达到最低可捕标准，表明该种规格网囊对多数经济种类幼体的损害比较严重。

The new progresses:(1)the anatomic studies on the leaves, stems and cones of 25 species Late Mesozoic conifers, particularly those very similar to the living genera, such as Athrotaxites, Torreya, Taxus, Cephalotaxopsis, Cunninghamia and the cheirolepidaceous conifers, such as Brachyphyllum and Psudofrenelopsis;(2) the distribution and evolution of the Late Mesozoic conifers, the relationship between the concentration of CO2 of the atmosphere and the stoma index of the gymnosperms during the Middle Jurassic and Early Cretaceous;(3) the characters, compositions and ages of the Jurassic floras of Yabula Basin, and Erlian Basin of Inner Mongolia and the Early Cretaceous floras and Jiuquan basin and Beishan Area of Gansu.

对12属25种中生代松柏类的枝叶、球果及茎干化石进行了解剖研究，特别是对与现生松柏类相似的Athrotaxites， Torreya， Taxus， Cephalotaxopsis， Cunninghamia及可能属于掌鳞杉科的Brachyphyllum， Psudofrenelopsis等的研究较为深入，发现了4个新种；总结了中国晚中生代松柏类的特点及分布，讨论了重点属的起源和演化问题；研究了中侏罗世、早白垩世及现代裸子植物包括松柏类气孔与大气CO2浓度关系，发现气

There are about 100 species plants in the wetland, and the majority is herbage and frutex. These plants included Polygonum hydropiper, Nelumbo nucifera, Annua Linn, Phragmites communis etc. At the same time, there are also 48 species animals, which belong to 30 families, and these animals included Ciconia ciconia, Cygrus cygrus, Platalea leucorodia, Meles meles etc.

湿地内有高等植物近100种，其中草本和灌木占大多数，典型的如水蓼、莲藕、早熟禾、芦苇等；在此栖息的动物有5纲共18目30科48种，具有代表性的如黑鹳，大天鹅、白琵鹭、狗獾等，是铜川市重要的水源补给地和湿地保护区，对于当地生态环境和经济社会可持续发展意义重大。

Three major clusters of numt sequences ( cyt b numt、 ATP8+ATP6 numt and ND4+ tRNA-His+ tRNA-Ser numt) were particularity amplified and sequenced from 10 species within Galliformes and A.galericalata. Comparison numts sequences with homologous mitochondrial partial genes get the different evolutionary characteristics and evolutionary speed compared to mtDNA, then examine the age of insertion of numts using the sequence divergence of numt from the mtDNA. Finally, joined Coturnix japonica、 Coturnix chinensis、 Lophura leucomelana、 Lophura swinhoii and A.albifrons mitochondrial sequences in GenBank, we study the importance function to phylogenetic research of mitochondrial genes and homologous numts.The evolutionary rate of Numts is lower than their authentic sequences of mtDNA, cyt b and ND4 gene evolve faster than homologous numts 2.5 times; ATP8+ATP6 gene evolve faster than numts 18.9 times in Galliformes. Numts show less codon position bias and transition bias under not phylogenetic pressure.

根据2004年3月GenBank登录的红原鸡核基因组草图与其线粒体基因组比对发现红原鸡核基因组中存在3段较长的线粒体假基因，利用PCR方法扩增鸡形目10种鸟类和雁形目中鸳鸯核基因组中3段numt序列：cyt b numt、ATP8及下游ATP6 numt和ND4+tRNA-His+tRNA-Ser numt，测序后分别比较线粒体基因与核同源numt序列的进化特点和进化速率，确定numt序列插入核基因组的时间，以及结合GenBank已登录的日本鹌鹑、蓝胸鹑、黑鹇、蓝鹇和1个雁形目物种——白鹅雁(A.albifrons)相应序列探讨两种同源序列对于鸟类系统进化发育重建的重要作用。

The result showed that Imperata cylindrical, Digitaria sanguinalis, Erigeron acer Xanthium sibiricum and Hedyotis auricularia are the species with high tolerance to heavy metal pollutions adapted to the adverse conditions of wastelands. These species can be used as pioneer plants for recovety of the vegetation in the manganese-mined wastelands. The individual event pollution index of the heavy mentals, compared to their background values are higher than 2, with Pb as an exception, indicating that the soil in these areas has been contaminated and that Mn and Cd are the elements creating most serious pollution problems.

结果表明，白茅、马唐、飞蓬、苍耳、耳草对重金属有较强的耐性，而且能适应废弃地的不良环境，可作为锰矿废弃地生态恢复的先锋植物；用3种不同的背景值对废弃地土壤重金属污染程度的评价结果是一致的，除Pb外，5种重金属元素单项污染指数均大于2，表示被污染，其中以Mn、Zn、Cd污染最为严重。

According to the condition of the dispase and alkaline proteinase, we combine the two enzymes so as to get the most optimization method to improve the yield of dissolvable peptide.

通过对单酶水解条件的摸索，将选择的两种酶以适当的比例混合，并且通过控制反应条件，提高蛋清蛋白的水解度和可溶性肽的得率，从而研制出一种适合蛋清白蛋白水解的复合酶。

The fumigation effect of the essential oil with and without HCN of bitter almond on insects was studied. The results show that the two kinds of bitter almond oil have strong fumigation activity against Musca domestica vicina, Aedes albopictus and Mythirmna separata. It is have the characteristic of low effective concentration and quick response.

通过含有HCN和去除HCN的苦杏仁精油对四种试虫的熏蒸杀虫活性，表明含有HCN和除去HCN两种苦杏仁精油对家蝇、白纹伊蚊以及粘虫均具有很强的熏蒸杀虫活性，具有作用浓度低、作用时间快的特点。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。