为期

President Barack Obama has ended his eight-day international trip with an unannounced visit to Iraq.

奥巴马总统结束了对伊拉克为期八天的不公开访问。

In this paper, a 2-year field manipulative experiment was conducted to study the effects of clipping (stubbled 1 cm, stubbled 3 cm, and unclipped), fertilizing, and watering on the compensatory growth of Elymus natans . The compensatory height, specific leaf area, net photosynthesis rate, and relative growth rate were measured, aimed to approach the compensatory mechanism of the species.

通过为期2年的野外控制实验，研究了刈割高度（留茬1 cm、3 cm及不刈割）、施肥和浇水处理对垂穗披碱草补偿生长的影响，并结合对各处理分株密度、比叶面积、净光合速率和相对生长率的变化研究，探讨了其补偿生长机制。

Dollars to buy a United Press International News Department of the overseas part of the picture, and the agency signed a 10-year syndication agreement from the 1985 United Press International to provide the United States Outside the international news picture.

1984年，路透社以576万美元买下了合众国际社新闻图片部的海外部分，并与该社签订了为期10年的供稿协议，决定从1985年起向合众国际社提供美国以外的国际新闻图片。

Guided by the URS, the URA is tasked to implement an urban renewal programme consisting of 200 new projects and 25 uncompleted projects of the LDC in the next 20 years.

这套策略为市建局提供指引，以推行为期20年的市区重建计划，当中包括200项新的市区重建项目，以及25个土发公司尚未完成的项目。

Court technicians tend to the court during day twelve of the 2009 US Open at the USTA Billie Jean King National Tennis Center on September 11, 2009 in the Flushing neighborhood of the Queens borough of New York City.

法院的技术人员往往在为期一天的2009年美国网球公开赛12向法庭在美国网协比利简金国家网球于2009年9月11日中心在纽约市皇后区法拉盛社区。

Daniel Koellerer of Austria kisses the net after making a point during his match against Juan Martin Del Potro of Argentina during day seven of the 2009 US Open at the USTA Billie Jean King National Tennis Center on September 6, 2009 in New York City.

丹尼尔奥地利Koellerer亲吻后，在为期一天的2009年美国公开赛7点在他对胡安马丁波特罗阿根廷队在美国网协比利简金国家网球于2009年9月6日中心在纽约市的网。

Researchers from ESO, the University of Lethbridge and Universidad de Valparaiso are currently in the middle of a 12-day programme, during which they plan to launch 29 radiosondes.

来自ESO、加拿 Lethbridge大学和智利Valparaiso大学的的研究者，正在进行一项为期12天的项目，他们计划升空29个无线电探空仪。

Two test samples were implanted in the ventral subcutaneous tissues of animals from a lot for 1 year.

两种测试样品植入同一组动物的前侧皮下组织内为期1年。

Conducted over two weeks in April 2010, the trial leveraged VERNet's existing network based on Ciena's Optical Multiservice Edge 6500 and Common Photonic Layer platforms and added 40G and 100G wavelengths alongside existing live 10G wavelength services.

本次试验为期两周，在2010年4月进行，充分利用了VERNet现有的基于Ciena光学多业务边缘6500和通用光子层平台的网络，并在目前已投入运行的10G波长服务基础上增加了40G和100G波长。

The two men are back from a ten-day visit to Iraq, and are even more voluble than usual.

这两人结束了为期10天的伊拉克访问，回来后比往常更加滔滔不绝。

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。