tubular heart

Notochord,optic vesicle,mesoderm,spinal cord floor-plate,neural tube,gut,otic vesicle,brain,oropharyngeal membrane and tubular heart of C.

对半滑舌鳎Cynoglossus semilaevis胚胎发育进行了组织学观察,首次描述了半滑舌鳎胚胎发育过程中脊索、眼囊、中胚层、脊髓底板、神经管、肠、耳囊、脑、口咽膜和心管等组织结构。

Aiming at the problem that eccentricity of casing in circular hole happened in thermal well,the finite element model is established and the effect of casing eccentricity on wellbore temperature field,casing stress and displacement were analyzed.

针对热采井中套管在圆形井眼中出现偏心的问题建立了有限元模型,分析套管偏心对井筒温度场和套管应力、位移的影响。

Study on soft-contact electromagnetic continuous casting of hollow billet;

空心管坯软接触电磁连铸技术研究

5%Pb hollow billet under traveling magnetic field.

利用等轴球晶两相凝固模型计算了行波磁场作用下空心管坯的凝固过程。

Distribution of magnetic field in electromagnetic continuous casting process of Al-alloy hollow billets is studied by way of numerical simulation.

采用数值模拟的方法研究了铝合金空心管坯电磁铸造中磁场的分布规律·建立了包括水冷芯、外结晶器、铸锭及内/外两个线圈的二维轴对称有限元模型·通过求解磁矢势微分方程,确定了磁感应强度在空间的分布·计算结果表明:铸造过程中内外线圈相互作用,外线圈电流约为内线圈的一半时,磁感应强度分布比较均匀;线圈电流频率和相位是空心管坯电磁铸造中重要的工艺参数,适当增加频率,管的内表面侧磁感应强度明显增强;相位影响磁感应强度梯度的大小和方向

In this paper,through the CFD modeling of the ash-agglomerated fluidized bed gasifier,the gas molar concentration distributions in the bed with the influences of the oxygen flow rate from the central nozzle,the steam flow rate from the distributor and the pressure of the bed are studied.

通过CFD模拟了灰熔聚流化床气化炉,考察了操作条件包括中心管氧气量、分布板水蒸气量以及操作压力对流化床气化炉的气相浓度分布的影响。

Control of macrostructure and surface quality during electromagnetic continuous casting of Sn-Pb hollow billets;

电磁连续铸造Sn-Pb空心管坯质量控制

Based on the solidification characters of hollow billets, a mathematical model was established to study numerically heat transfer during horizontal continuous casting of BFe30-1-1 alloy.

根据空心管坯的凝固传热特点建立了空心管坯水平连铸数值计算模型,采用ANSYS软件计算了水平连铸过程中浇注温度、冷却强度及拉坯速度对BFe30-1-1白铜合金管坯糊状区宽度和液穴深度的影响。

In order to obtain hollow billets of BFe30-1-1 alloy, a new casting technology was investigated and hollow billets with size of φ83 mm×20 mm were produced in laboratory.

探索了用水平连铸的方法制备BFe30-1-1铜合金空心管坯的技术,在实验室成功制备了φ83mm×20mm空心管坯。

slip-on type pipe base screen

套在中心管上的筛管

full weld-on pipe base screen

带中心管的全焊接筛管

of or pertaining to or involving the heart and blood vessels.

属于心血管，与心血管有关，或侵袭心血管。

Don't be worried,@ he said,

管家说：“别担心，

Regional Arab Centre of Labour Administration

劳工管理阿拉伯区域中心(劳管中心)

cardiovascular system alteration during weightlessness

失重时心血管系统变化

London Air Traffic Control Center

伦敦空中交通管理中心

line type centrifugal separator

管道型离心式分离器

Centre ivoirien pour la gastin des entreprises

科特迪瓦企业管理中心

otic congenital angiocardiopathy

紫绀型先天性心血管病

for (all) one's pains

1.尽管费尽力气(或心思)

cardiac catheterization equipment

心脏导管插入术设备

centrifugal casting pipe for stay bolt

贯穿螺栓离心铸造管

X-ray cardiovascular examination system

心血管X线检查系统

fully transistorized electrocardiograph

全晶体管式心电图机

RATCC (Radar Air Traffic Control Center)

空中交通管制雷达中心

Cast-iron pressure pipe centrifugally cast in sand-lined molds

GB/T3421-1982砂型离心铸铁管

angiocardiography high pressure injector

心血管造影高压注射器