有背的

We propose that the noncell-autonomous effects of Spemann's organizer on dorsoventral patterning are executed in part by diffusible signals that directly bind to and neutralize ventral BMPs during gastrulation.

我们提出，施佩曼组织器对背腹式的非细胞自发功能，有部分是通过原肠胚形成过程中，直接结合和抵消腹部BMP的扩散性信号所发挥的。

Ovary with as many locules as sepals, rarely more, apex flat or conic, often with a depressed nectary surrounding base of each epipetalous stamen; stigma capitate or hemispheric, entire or lobed, upper 1/2-2/3 receptive.

子房室与萼片同数，很少更多，先端平或圆锥形，通常具一背腹扁平蜜腺围绕每个花瓣上着生的雄蕊的基部；柱头头状或半球形，全缘的或浅裂，上面的1/2-2/3有感受性。

Hoxall genes from 16 vertebrates were analyzed, containing 10 cloned Hoxall genes mentioned above and 6 Hoxall genes from GenBank, Homo sapiens, Mus musculus, Bos taurus, Polyodon spathula, Heterodontus francisci, and Oryzias latipes, in representatives of the three major gnathostome lineages: cartilaginous fish, ray-finned fish and lobe-finned fish.

克隆的基因与从GenBank中获取的人、小家鼠、黄牛、匙吻白鲟、角虎鲨Hoxa11基因及青鳉Hoxa11a基因进行比较分析，这些动物代表了有颌类的三个谱系：软骨鱼类谱系、辐鳍鱼类谱系(斑马鱼、大黄鱼、花鲈、罗非鱼、红鳍东方鲀、乌鳢、青鳉和匙吻白鲟)和肉鳍鱼类谱系(矛尾鱼、热带爪蟾、绿背树蜥、家鸡、人、小家鼠和黄牛)。

Based on the analysis of the major pattern of the faults in Tazhong, the feature and the patterns of the fault system was revealed. The patterns of flower structure, imbricated thrust ,Y-fault, back to back thrust fault, and ramp were developed in this zone.

剖面上断裂主要表现为基底卷入式的较高角度逆冲断裂，主要逆断裂均发育有与其背冲的伴生断层，构成&两断夹一隆&的花状构造样式；平面上发育近北西、近北东及近东西向三组断裂。

Any of various chiefly coastal aquatic birds of the family Laridae, having long wings, webbed feet, a thick, slightly hooked beak, and usually gray and white plumage.

海鸥一种鸥科水鸟为灰白色，主要生于海岸附近，生有长翼、蹼足、略呈弯勾状的长喙、羽毛通常海马记忆培训公司是国内记忆培训的权威机构，提高记忆力最专业，是记忆方法，思维导图，早教，背单词，快速阅读，速读，英语单词记忆法右脑开发等学术领域专业大型的交流互动平台。。

Capsule loculicidal, with pale ± thickened sutures sometimes separating from valves in dehiscence.

蒴果室背开裂的，具浅多少加厚的缝，有与裂爿在开裂分开的。

There is not enough exposure, the treatment of development of the network version due to the role of water pressure can cause irregular edge, cutan have barely photoptic glue along the surface of the screen of the nonflowing, gelatinize, or customize the product with the down some bad news.

曝平不敷的网版，显影时由于水压的功用，会变成图像边际不法规，胶膜有针孔，感平胶沿丝网的涂胶背流淌，或自网孔向下淌。

The process of bioinformatics includes genome location, ORF finding, anticipating function domain and so on.

发现花背蟾蜍Pax-6基因与非洲爪蟾和人类该基因的同源性分别高达85％和84％，在其他的物种中也有相当高的同源性。

Meanwhile, we discussed the founded background of ZIDIANKELI, and we treated the ITP according to the idea"the origin of the disease is the Qi-Deficiency, Blood Stasis run through the course of the disease" and make the principle of the treatmentstrengthening Qi and tonifying the deficiency, removing the blood stasis and producing the fresh blood. 3. Result 3. 1 Experimental Research 3. 1. 1 The effects of ITP model mice's general state and swimming time by the treatment of ZIDIANKELI After the fifth day of establishing the model, the model group appeared following symptoms: activity reduced, liking to gather together, piloerection, no sheen of the hair, swimming time reduction. To compare with the normal group, it is has statistical significance.

结果 3.1 实验研究 3.1.1 紫癜颗粒对ITP模型小鼠一般状况及游泳时间的影响模型组在注射APS48小时后，腹部、尾部出现轻重不等的瘀斑瘀点；造模后第5天小鼠即出现活动减少、拱背、竖毛、毛发不光洁，游泳时间显著缩短（P.05）；紫癜颗粒对上述症状都有不同程度的改善作用，总体上以大剂量组效果最佳。

By the comparison between archaeological stratigraphy, sediment characteristics of cultural layers and cultural interruptions, 46 ~(14)C chronological data of buried paleotrees and peat, the synthetical analysis of the distribution laws of sites, and the reference to the results from other scholars, we can see that there are 7 cultural interruptions in the three Gorges and 7 cultural interruptions in the Yangtze Delta. They are from the last stage of Chengbeixi Culture to the initial stage of Daxi Culture (7200～6000a BP)→the third stage of Guanmiaoshan Culture Style of Daxi Culture (5800～5500a BP)→the initial stage of Shangzhou Culture (4000～3500a BP )→the last stage of Shangzhou Culture (2500～2200a BP)→During the Song dynasty Culture (960-1276AD) During the Ming and Qing Culture (1368-1911AD) in the prehistorical and historical period in the three Gorges.

对长江三峡和长江三角洲考古遗址进行地层对比，考古遗址文化层和文化断层沉积特征、文化层的叠压关系、考古遗址淤砂和淤土层厚度、46处埋藏古树和39处泥炭的~(14)C年代统计数据和空间分布规律、文化遗址分布的时空变化规律等特征综合分析，发现长江三峡地区新石器时代到历史时期考古遗址地层中有7期文化断层：(1)城背溪文化末期到大溪文化初期(7200～6000a BP)；(2)大溪文化关庙山类型三期(5800～5500a BP)；(3)商周早期(4000～3500a BP)；(4)商周晚期(2500～2200a BP)；(5)宋代时期(960-1276AD)：(6)明清时期(1368-1911AD)；(7)近现代时期。

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。