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In this study, ultrasound examination of the fetal profile in 701 fetuses at 11 to 14 weeks gestation was done immediately before karyotyping in pregnancies meeting screening criteria for advanced maternal age and fetal nuchal translucency.

这项研究中，在监定妊娠染色体组合之前，对符合母亲年龄和胎儿颈背透明度筛检标准的的11至14孕周共701名胎儿进行了超音波检查。

The effects of variable properties on flow and heat transfer were also studied. 1. SIMPLEC algorithm was used to simulate the laminar natural convection flow in horizontal concentric annuli with the assumption of constant properties. Numerical studies range are as follows: Ra〓 number 100～10〓, radius ratio 1. 2～10.Velocity and temperature distribution profile and the heat transfer result were derived. The comparison of heat transfer results under the boundary condition of constant heat flux and constant wall temperature was also made.

对水平同心套管内层流自然对流采用SIMPLEC算法进行了数值模拟，在〓，半径比1.2～10范围内使用定物性假设进行了计算，得到有关温度和速度的分布以及相应的换热结果，并比较了内壁面分别处于定热流和定壁温条件下换热结果的差异，根据换热计算的结果整理并拟合有关的换热关联式。

The first and second derivatives of the coordinates of a cam profile are calculated using numerical differentiation method,and substituted with curvature radius formulas in calculus,thus obtaining its curvature radius.

应用数值微分法计算凸轮廓线坐标的一、二阶导数，代入微积分学中曲率半径公式，即得凸轮廓线的曲率半径。

Based on this velocity profile,the nonlinear mapping between the cross-sections is studied by numerical integration.

在加权残余法与谱方法相结合的基础上，分析了扭转弯管中的二次层流，并说明了在某些情况下将诱发混沌现像。

The possible differential rotation among the layers of the Earth interior and its contribution to nutation, as well as the displacement profile interior, are studied, which provides a new method to study the differential rotation of the Earth cores.

讨论了地球内部可能的较差转动对章动的贡献以及地球内部形变场剖面，特别是核幔边界附近的低阶形变场的非线性特性，为研究较差转动提供了除地震学之外的另一种新的可能途径。

Red galaxies mainly consist of bulge- dominated objects, while around 1/5 of those presents disk-dominated profile but observationally face-on, so-called diffuse red galaxies.

红色星系的组成主要为结构以核球为主的星系，然而有大约1/5的红色星系为结构以圆盘为主、且为观测上面向的星系，我们称之为扩散红色星系。

The main conclusions from the works presented in this thesis can be as this: for the Galactic OH 1612MHz masers, the radiative pumping mechanism coexists with other mechanisms while some other unresolved problems need to be solved after the launch of more advanced space infrared spectrometer and the more reliable identification of the evolutionary status of the maser bearing infrared sources;the asymmetrical 53.3μm absorption line profile could become a powerful tool to assist us to observationally discriminate the radiative pumping mechanism from other pumping mechanisms in the OH masers.This is the English version of my PhD thesis.

通过本论文的研究工作，我们可以得到这样的结论：在银河系内的OH 1612MHz脉泽中，辐射抽运机制与其它抽运机制并存，而还有一些未解决的问题需要等待更先进的空间红外光谱观测设备的使用并与天体类型证认工作相配合加以解决；不对称的53.3微米吸收线轮廓特征有可能成为帮助我们从观测上对OH脉泽的辐射抽运机制加以鉴别的有力工具。

And rightly so — for one of the world'smosthigh-profile scientists to state such views demonstrates asheerunacceptable offensiveness.

作为世界上最具影响力的科学家之一，如此言论只能带来令人反感的效果。

Finally, the reason for forming ohmic contact is investigated by use of I-V measurements and AES depth profile.

最后，利用伏安特性和俄歇电子能谱深度分布研究金属与高Al组分的材料之间形成欧姆接触的原因。

Sven chatted about everything from his love life to his high-profile job in a radio interview. He revealed that he had no plans to marry his girlfriend Nancy Dell'Olio, claimed women only found him attractive because of his job and played down his "ice man" image.

据英国《镜报》日前报道，埃里克森在采访中透露，自己至今都没有迎娶女朋友南希·德尔奥廖的打算，并不客气地说，女人只是因为他的工作才爱上他的，同时承认谈恋爱也会淡化自己"冷漠"的形象。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。