下底板

During segmentation,GFP was detected in the notochord but not in the foor plate.

GFP在原肠作用期就开始表达，主要发生在中轴下胚层中；在体节形成期，GFP在脊索细胞中表达，但未发现在神经底板细胞中表达。

Firstly, owing to the existing restriction with insufficient function while imitating the construction using top-down method of business software in common use, this text compiles three-dimensional finite element procedure of plasticity using the model of revisal Cambridge procedure, which better reflect the nature of soil and the force bore ;Secondly, utilizing the procedure compiled , the emulation analysis is used in the large-scale case, which study the responding law of the soil pressure around the case containing, the roof, sheet pile, wall and the floor with the progress of the construction in the course of the construction using top-down method and the distribution law of the stress in the real vehicle.

本文首先针对现有通用商业软件在模拟逆作法施工时功能不足的限制，研编了可以考虑修正剑桥模型的三维弹塑性有限元程序，该程序能较好的反映工程场地的土性和受力，模拟逆作过程；其次，利用研编的程序，对大型箱涵进行了仿真分析，研究了箱涵在逆作过程中周边土压力，顶板，板桩，桩间墙和底板随施工步序进展的系统响应规律，以及箱涵建成后，在实际车辆荷载下箱涵结构的应力分布规律。

Experiment through a water work model to the figure which turn on water tower from the hydraulics angle, from the hydraulics angle to the figure structure which turn on water tower and turn on water hole carry on a verification with excellent turn, emphasize research to turn on water tower dissimilarity under the size circumstance of the figure structure of enter the water bore water current flow Tai and release excessive water ability, water current to press a strong circumstance towards turn on water tower tower wall, scaleboard creation of pound at, and put forward more and so releasing excessive water circulate to adjust one degree way.

从水力学角度对放水塔的体形通过水工模型试验，从水力学角度对放水塔、放水洞的体形结构进行验证和优化，着重研究放水塔不同体形结构尺寸情况下的进水孔水流流态、泄洪能力、水流对放水塔塔壁、底板产生的冲击压强情况，并提出较好的泄洪运行调度方式。

To simulate the actual combustion, puts a flat of sediment on the soleplate in the air duct and measures the temperature field in the air duct, by thermocouples when the fire happens in the condition of different air velocities, different air duct sizes and different distribution of the sediment.

为了模拟实际燃烧状况，在实验风管内底板上平铺一层聚积物，在不同的回风速度、不同的风管尺寸以及不同的聚集物厚度的条件下，利用热电偶测量火灾时风管内的温度场。

In order to study the failure characteristics of surrounding rock masses and mechanism of water inrush caused by karstic collapse.

为研究煤层底板陷落柱破坏特征及突水机理，采用FLAC3D模拟分析了陷落柱影响下采面推进过程的不同阶段。

Neuroectoderm; neural crest; neural plate; floor plate; neural tube; neuraxis; neurulation; neuroblasts; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; neuroblastoma cells; cell migration; neurogenesis; development; developmental stages

神经外胚层；神经脊；神经板；底板；神经管；轴索；神经胚形成；成神经细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；gangliogenesis；胚胎发生；axonogenesis；retinogenesis；gliogenesis；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管故障；无脑；脊柱裂；成神经细胞瘤细胞；细胞迁移；神经发生；发展；发展进程下一页末页共有 23 条记录，本页从第 1 到第 10 条。

Optimize the panel mining system of Xishimen Iron Mine at the aim of the stability of slusher drifts on footwall, and seek for the optimum mining sequence between panels.

以开采线前方底板电耙巷道的稳定性为目标，对盘区开采顺序进行了试验优化研究，获得了该目标下的最优盘区开采顺序；然后考虑西石门铁矿南区盘区开采的实际情况，对现有盘区开采规划进行了数值模拟分析，并对今后开采过程中的地压形势提出了预测。

It is used on baffle plate, with rectangular structure, which strengthen the stability of upper and lower layers to avoid the damage to clay body.

用于模底板上、下码垛，结构采用矩形结构，增强了上下层的稳定性，防止对坯体损伤。

Now, to make everything movable I am going to include two shafts that the bottom plate slide up and down on thus moving the scopes.

现在，让一切动产我要包括两轴，该底板投影片向上和向下移动，从而对的范围。

On bottom slamming load and strength requirement for Structures of Box Barges;2. In this paper, two finite element models of plated grillages are built to calculate the transient dynamic response to slamming load of a high-speed ship.

本文运用大型有限元程序ANSYS建立某一高速船密加筋和纵骨架式两种形式的船底板架的有限元模型，计算这两种船底结构板架在砰击载荷作用下的瞬态动力响应特征，进行比较分析，得出能更好的抗砰击的高速船船底结构形式，为高速船的结构没计提供参考。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。