An X chromosome combines with the mother's X chromosome to make a baby girl ( XX) and a Y chromosome will combine with the mother's to make a boy ( XY).

Analytical study of phase structure and critical behavior of 3D XY model

三维XY模型的相结构和临界行为的解析研究

Contour Control for Linear Motor XY Table based on Equivalent Errors Method

基于等效误差法的直线电机XY平台轮廓控制

Dynamical Phase Transition of Two Dimensional XY Model in a Magnetic Field

外磁场中二维XY模型的动力学相变

MetLife said it expected the deal to close at the end of the year.

大都会保险表示，交易预期将于年底完成。

MetLife said it was unfair to apply the same tests to insurers as it did to banks.

大都会人寿则称，对保险公司和银行采用同样的测试有失公允。

Both Citigroup and MetLife pointed to the consolidation of America's insurance industry as justification for the deal.

花旗集团和大都会人寿都说，他们间的交易是顺应了美国保险业合并后做大做强的潮流。

Conclusions Necrotic bowel complicating intussusception could be correctly diagnosed by careful clinical, roentgenologic and air pressure enema examinations.

出现上述表现者肠坏死的可能性更大。结论通过临床及X线透视下气压灌肠检查可明确肠套叠是否伴肠坏死，从而正确选择治疗方法。

In the 263 children, reduction by air and hydrostatic pressure enema was applied in 83, and operation surgery was used for 183 in whom intestine removal was applied in 20. Conclusion: The symptoms of some children intussusception are not typical and easy to be misdiagnosed.

263例患儿中空气及水压灌肠复位83例，手术183例，其中肠切除20例。

Method: Twenty nine cases of 2 stage air pressure enema reduction were analysed.

方法：首次空气灌肠失败经选择后行二次空气灌肠29例。

The application value of 654-2 in the treatment of acute child intussusception with air pressure enema

山莨菪碱在小儿空气灌肠整复急性肠套叠中的价值研究

Materials and Methods: Over the past 10 years, there were 212 cases of intussusception confirmed by air pressure enema. Among these, the film were taken before operation for operational infants.

材料与方法：搜集10年经气压灌肠证实的肠套叠患儿212例，其中手术患儿术前均摄有腹部平片。

Objective: To investigate the clinical implications of 2 stage air pressure enema reduction of intussusception.

目的：探讨肠套叠二次空气灌肠的指征及其临床意义。

Methods 231 cases of infant indigitation were confirmed by air pressure enema reduction or operation, all performed abdomen film on erect and supine positions before air pressure enema reduction.

方法婴儿肠套叠231例，均有完整的空气灌肠前立卧位腹部平片，并经空气灌肠或手术复位确诊。

The Readjustment of Air Pressure Enema Reduction of Intussusception

肠套叠空气灌肠再认识

Methods Over the past 20 years, there were 8 519 cases of intussusception confirmed by air pressure enema. Among these, 231 cases had necrotic bowel evidenced by surgical treatment.

方法搜集近20年经气压灌肠证实肠套叠的患儿8519例，其中231例经手术证实伴有肠坏死。

The Clinical Practice and Choice of 2 stage Air Pressure Enema Reduction of Intussusception

肠套叠二次空气灌肠临床实践与选择

Conclusion The application of 654-2 before replacing can improve the success rate for child intussusception in reduction with air pressure enema and shorten the time of replacing, it is worth applying in routine clinical practices.

结论整复前肌注654-2有助于提高小儿急性肠套叠空气灌肠整复的成功率及缩短整复时间，在临床应用中可考虑推广使用。

Result: 90 of 103 cases of air pressure enema reduction were cured.

结果：103例经过空气灌肠90例成功。

But economists are telling the Kansas City Fed's annual symposium there is more to assess in labour market progress and deciding when to raise rates than just looking at the jobless rate.

但是经济学家在堪萨斯城联邦储备银行主办的年度研讨会上表示，劳工市场的改善需要经过更多评估才能决定何时提高利率，而不是仅仅以失业率作为衡量标准。

However, the developed countries in Europe and America give it a certain legal effects with the change of labour organization and progress of way of production and work in the past ten years.

然而，近二十年来，由于生产劳动组织与生产劳动方式发生了重大的改变，欧美发达国家纷纷对临时性岗位用工赋予一定的法律效力。