三重的

A new convenient synthesis of a series of 1-aryl-2-propanones using aromatic amines as precursors, via diazo reaction and improved Meerwein arylation reaction under mild conditions, was achieved. In addition, 1-[3,5-bisphenyl]-2-propanone is a new compound among the synthesized compounds. This approach is an efficient synthetic method for the aryl-propanones with the different substituting groups.

以芳香胺为原料，经重氮化和改进的Meerwein芳基取代反应，合成了一系列的1-芳基－2-丙酮，其中1-（3，5-二三氟甲基苯基）2-丙酮是一个新化合物改进后的方法简化了合成步骤，提高了收率，可方便地用于在苯环上具有不同取代基的芳基丙酮的合成。

But, at present, the production of a soil displacement agent from heavy alkylbenzene sulfonate and petroleum sulfonate as oil displacement agent, there were still some problems as the instable quality, produce scale. It is necessary to develop a feasible production process of arylalkyl sulfonate, alkylated diphenyl ether sulfonate and fatty alcohol ether sulfonate as they can be used as oil displacement assistant in some special oil reservoir. In which Because their abundant raw material, big changeability of structure, high electrolyte tolerance, especial strong calcium tolerance, fatty alcohol ether sulfonate has huge industrialized value.

指出重烷基苯磺酸盐和石油磺酸盐作为三次采油的主表面活性剂，目前在工业化生产中仍存在一些问题，产品质量不太稳定，需进一步改进生产工艺技术，提高产品质量，扩大生产规模；芳基烷基磺酸盐和烷基二苯醚磺酸盐可作为助表面活性剂用于特殊的油藏条件，有必要尽快开发可行的工业化生产工艺；脂肪醇醚磺酸盐类表面活性剂的原料来源丰富，分子结构可变性强，耐电解质能力强，尤其是耐钙能力强，应用领域广，极具工业化价值。

Three series of disperse dyes based on heterocyclic diazo components have been designed. The structures of the synthesized compounds were identified by MS, IR and NMR.

本文设计并合成了三个系列的含杂环重氮组分的偶氮分散染料，通过质谱、红外光谱及核磁共振谱等测试手段验证了所合成的化合物的结构。

He still expects to get a good two-thirds or more of the oil and food he needs from China—helping to stave off a return of the famine of the 1990s—and more dollops of aid from South Korea.

他仍期望能从中国获得他所需要的石油和食品的三分之二或更多——帮助他躲避20世纪90年代初那次饥荒的重来——从南朝鲜得到更多的食品援助。

The system theory of three stages type feeding material was put forward,and the implementation methods of feed hopper, variable and quick speed feeding material were emphatically elaborated.

从重力称重式充填机加料方式的角度探讨其对充填精度与速度的影响机理，分析了常见重力充填机的工作原理与存在问题，提出了三段式加料系统原理，着重阐述了加料斗加料和变速快加料的实施方法。

The enterprises of a party, the capital of which is wholly or partly owned or controlled, directly or indirectly, by one or more residents of the other party, shall not be subject in the first-mentioned party to any taxation or any requirement, which is different from or more burdensome than the taxation or requirement to which other similar enterprises of the first-mentioned party are or may be subject to.

三、一方企业的资本全部或部分，直接或间接为另一方一个或一个以上的居民拥有或控制，该企业在该一方负担的税收或者有关条件，不应与该一方其它同类企业的负担或可能负担的税收或者有关条件不同或比其更重。

Enterprises of one side, the capital of which is wholly or partly owned or controlled, directly or indirectly, by one or more residents of the other side, shall not be subjected in the first-mentioned side to any taxation or any requirement connected therewith which is different from, or more burdensome than, the taxation and connected requirements to which other similar enterprises of that first-mentioned side are or may be subjected.

三、一方企业的资本全部或部分，直接或间接为另一方一个或一个以上的居民拥有或控制，该企业在该一方负担的税收或者有关条件，不应与该一方其它同类企业的负担或可能负担的税收或者有关条件不同或比其更重。

The paper has introduced the handling capacity improvement of no-volt product heavy media cyclone ,solution to clean coal product with dirt,decrease of medium lose,together with the separation efficiency of cyclone and problems existing in dressing technology.

介绍了无压三产品重介旋流器处理量的提高，精煤产品夹矸问题的解决，介质损失的降低，以及旋流器的分选效果和选煤工艺存在的问题。

Topview data show that since September into the first 12 trading days banks plate showing a net outflow of funds, on day two and a half weeks of net capital outflow amounted to 4,390,000,000 yuan, the index plummeted plate 18.64 percent, and on September 19 in heavy three-pronged made good banking stocks in order to limit the collective opened, in the face of such rapid changes in the surface of the investors will be how to deal with, a cause of concern.

Topview数据显示，进入9月以来的前12个交易日呈现出银行的资金净流出板块，在第二天和资本净流出半周达四十三点九零零亿元，该指数下跌18.64百分之板，并在9月19日重三方面取得了良好的银行股，以限制集体开设了在表面的投资者面对如此迅速的变化，将如何处理，令人关注。

Around 8pm the light was starting to fade. We were one pitch below Camp 5. Interestingly enough we heard lots of voices above us. I avoided having to lead the last pitch by getting the French party to throw down a rope that we could jumar up. Like the first night we were surprised how many folks were up and around this bivy. There was the French party. There was the Nose-in-2-days party and there was a Nose-in-hopefully-5-days party. There five of them in the last party and they had 3 or 4 huge haul sacks. There was one guy who must have been 275 pounds. He was the designated haul bag mule.

大概晚上八点，光线暗了下来，我们在第五营下一个绳距，有趣的是我们听到上面有很多声音，我不用先锋最后这个绳距，因为法国队抛下一条绳子，我们只要用犹玛上升即可，就像第一个晚上惊讶，好多人上到这个过夜处，有法国队，还有一个两天爬完Nose的队伍，还有一个希望在五天内能爬完Nose的队伍，最后这一队有五个人，三四个拖包，其中有个家伙大概有275磅重，他大概是专门拉拖包的吧。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了