大难题

Since the old wells in this gas reservoir were shut in almost 13 years ago, either the workover or the gas production has faced all kinds of technical difficulties and safety risks in terms of wellbore corrosion evaluation, recompletion, corrosion and prevention, and hydrate prediction and control, etc.

该气藏老井封存时间长达13 a，修井采气面临井筒腐蚀评价、重新完井、腐蚀与防治、水合物预测等难题，存在较大的技术难度和安全风险。

The area of Nantong in Jiangsu Province is a fluvial plain by Yangtze River. To the north of the mouth of river to the sea is a beach plain, which was once the boundless ocean in history, through the development of history, form the wide seabeach finally. The two plains, which are in the different location, have the different ways to utilize the soil. The Yangtze Fluvial Plain, whose soil is fertile, grew to be the well-known area of producing cotton, with people outnumbering the farmland, while the beach plain became a famous salt field. With the development of the coastline, Huainan saltern declined day by day and at the beginning of 20th century, under the advocate of local government and the call of modern industrialist, Mr. Zhang Jian, the salt field in the North of Jiangsu province underwent a great reclaim-plain movement, which brought a tide of spontaneous immigration to the area. During the movement, the key problem is the contest for the ground. As the ownership of the land of salt fields is complex, the unification of the ownerhship of land was not easy. Zhang creatively took advantage of the form of modern joint-stock company to solve the problem.

江苏省长江口北岸现南通地区为长江冲积平原，沿江口向北为海岸淤涨地区，历史上这里曾是汪洋大海，经过多年历史演变，终于形成广阔的海滩，两个不同的淤涨地区，对土地的利用截然不同，沿江地区土地肥沃，逐渐成为著名的棉产地，人多地少；沿海则成为我国历史上著名的两淮盐产地，随着海岸线的演变，淮南盐场日益没落，20世纪初，在政府的提倡和近代实业家张謇的发动号召下，苏北盐垦地区发起了一场波澜壮阔的垦殖运动，与此相适应的则是一场自发的移民大潮，在这两大潮流中，最核心的是对地权的争夺，由于两淮盐场地权复杂，统一地权实属不易，张謇等人创造性地运用近代股份公司的形式解决了这一难题。

The hardest problem is how to convince the sceptic .

最大的难题是说服那些多疑的人。

The advices of popular investment advisors are apparently inconsistent with the separation theorem; it is the so-called Canner puzzle.

通常的投资建议和两基金分离定理之间存在较大差异，这就是著名的Canner难题。

In order to overcome some difficulties in mechanized kaolin mining, such as the weak roof, hard ore body, high toughness, it is necessary to apply long hole standing shot technology before the mining activity so as to improve the mechanical cutting efficiency and meet the demand of blocks degree.

为了解决煤系高岭土矿机械化开采存在顶板软弱，矿体相对煤炭质地硬，韧性大，矿石块度要求适中等难题，有必要在开采前采用预先对矿体进行充分合理的松动爆破，以提高机械切割效率及满足矿石块度适中的要求。

Being supported by Hebei Kangli Animal Pharmaceutical Co., Ltd., and based on the research object, coccidiosis, which damages to livestock breeding heavily, this project has developed QIULIKE--an oral liquid of pure traditional Chinese medicine compounded with 7 Chinese medicinal herbs such as Dichroa febrifuga, southernwood and Sophora flavescens Ait., ect. The aim of the project is to solve the problem of present heavy residual quantity of anti-coccidiosis agent in order to meet the people's increasing requirement for "pollution-free" food.

本项目以河北康利动物药业有限公司为依托，以危害养殖业比较严重的球虫病为研究对象，研制出以常山，青蒿，苦参等7位中药配伍而成的球立克口服液，旨在解决目前抗球虫药残留量大的难题，更好地满足人们对"绿色"食品与日俱增的需求。

SPIV was applied to a large-scale low-speed compressor facility with the configuration of the two CCD cameras placed on either side of the light sheet to make the measurement of the complex flow in hub-to-tip cross sections possible and to avoid the disturbance from the light sheet probe as used in the periscope-type configuration, which can also be easily used in multistage and high-speed turbomachinery.

本文将数字式SPIV技术应用到低速大尺寸压气机实验台上，解决了压气机内部非定常复杂流动瞬态场的技术难题，所发展的SPIV测量技术同样适用于多级叶轮机械；并在设计状态和近失速状态下，对转子槽道内叶尖区域及转静干扰条件下静子槽道内叶尖区域多个截面内的三维瞬态速度场进行了成功测量。

It is not a problem because I think we can manage with Stevie or another player.

这不是个太大的难题，我想我可以用杰拉德或者其他人。

This is the biggest stumbling-block of all for the artificially-constructed tongue.

这是人工编造的语言遇到的最大的难题，没有任何自己的文学作品，它们能提供的全部也只是一些数量有限的翻译文章。

Handelsblatt: yesterday, the reporter from China's largest dating sites marriage century Pack to understand that their will "Tanabata Festival" before the launch of e-commerce support services, this will be the first domestic Marriage Personals launched e-commerce industry Services, is also the founder of Hai-Yan Gong Kai margin once again to "profit" of problems in this industry challenge.

商报讯昨日，记者从中国最大的婚恋交友网站世纪佳缘了解到，其将于"七夕节"前推出电子商务配套服务，这将是国内婚恋交友行业首次推出电子商务的服务项目，同时也是世纪佳缘创始人龚海燕再次向"盈利"这一行业性难题发起挑战。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。