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Benzoyl chloride was treated with potassium selenocyanate in dichioromethane by using polyethylene glycal-400 as the solid-liquid phase transfer catalyst to yield the corresponding benzoyl isoselenocyanate. This intermediate did not need to be isolated and directly reacted with arylamines, affording the N-benzoyl-N'-arylselenoureas 2a~2p. These compounds were characterized by IR, 1H NMR spectra and elemental analysis and the single crystal structure of 2k has been confirmed by X-ray crystallographic analysis.

以PEG-400为固液相转移催化剂，通过苯甲酰氯与硒氰酸钾反应合成了中间体苯甲酰基异硒氰酸酯，该中间体不需分离，直接与芳胺反应，得到N-苯甲酰基－N'-芳基硒脲(2a~2p)，这些化合物用1H NMR，IR及元素分析进行了表徵，并用X射线单晶衍射确定了化合物2k的单晶结构。

Reaction of L-tyrosine with benzyl bromide in the presence of copper sulfate led to the protection of phenol group on the side chain of L-tyrosine to give H-Tyr-OH in 45% yield via a copper complex intermediate.

酪氨酸与溴化苄在硫酸铜存在下反应，选择性地在其侧链酚羟基上引入苄基保护基，通过反应条件的优化，反应产率达到45%。

To evaluate the factors affecting seed yield of castor and categorize castor resource, 46 castor germplasms were analyzed according to the key components analysis and cluster analysis of 11 quantitative characters.

初步提出评选蓖麻种质资源的遗传主成分标准。46份蓖麻种质资源被分为4类，地理远缘材料在遗传上不一定远缘，而近缘材料由于选择方向不同可能成为遗传远缘。

At Guinea the gold 迪 is second, the section 巴 wait the main 产 area, expert of ground paddy rice in the headwaters than good, rich soil of local chose 6 demonstrates the point, and demonstrate to plant the area 7.4 hectares, demonstrate the point most press be ground cultivation method proceeds, then not apply fertilizer the 料, not the 施 agrochemical , Chinese 杂 hand over the 稻 to express the familiar period more early, yield increase by 1 times above.2004 the dry quarter, expert organize in the section 巴 big area of farm demonstrate, the demonstrate plant the area 130 average and each hectare of hectares, single 产 5.02 ton, create Guinea big area of paddy rice produce tallest record.

在几内亚金迪亚、科巴等地水稻主产区，专家在水源较好、土地肥沃的地方选择了6个示范点，示范种植面积7.4公顷，示范点多数按当地栽培方法进行，即不施肥料、不施农药，中国杂交稻表现熟期较早，产量增加1倍以上。2004年旱季，专家组织在科巴农场大面积示范，示范种植面积130公顷，单产平均每公顷5.02吨，创几内亚水稻大面积生产最高纪录。

Long term we have to remain bullish July new crop Kansas City Exchange winter wheat crop futures as any weather problems through April 1st to May 20th our key yield development time and sharp supply side concern rallies will be certain.

长期来看我们依然看多新作7月的堪萨斯小麦，因为从四月一日至五月20日其间的任何天气问题都会使得供应紧张。

In the design of expension tool, the cone angle is the key, because it must satisfy the plastic extreme condition of the expension tube and reduce the upgoing frictional resistance of the expension cone to minimize the possibility of tool sticking. It is preferred that the material quality of expension tube must differs from that of casing and the yield limit of expension tube must be less than that of casing, which is favorable to protect casing.

在膨胀工具结构设计中，锥角设计是关键，除了要满足膨胀管达到塑性极限条件外，还应综合考虑膨胀锥上行的摩阻尽可能小，以减小工具卡死的可能；膨胀管的材质应与套管材质有差异为好，并且膨胀管的屈服极限应小于套管的屈服极限，这样有利于保护套管。

Corn seedlings abnormal color not only affects the normal growth of corn, but also reduce the yield and quality, therefore, to try to control.

玉米苗颜色异常，既影响玉米正常生长，又降低产量和品质，因此，要设法控制。

It has been proved that there are two types of corn-growing soils, balanced or unbalanced in soil nutrient supply-Therefore it is necessary to recommend proper nutrient ratios to achieve high yield of corn.

以前的研究已认识到种植玉米的土壤具有平衡与不平衡的土壤养分供应类型，因而其高产施肥需要相应的养分配比。

SME financing is the allocation of funds for SMEs social process, through capital investment, the constant changes in direction, and guide the flow of funds to high-yield industries or enterprises, in order to maintain the competitive advantage of enterprises, and achieve the maximization of the economic efficiency of enterprises.

中小企业融资就是社会对中小企业资金配置的过程，即通过资金投入方向上的不断变化，引导资金流向收益率高的行业或企业，以保持企业的竞争优势，并实现企业经济效益的最大化。

This design basis of the provided by the bureau surveying place normal and the largest yield,by "Coal Mine Safety Regulations" and the design specification,atter a scientific calculation and analysis,carry on the choice in view of the drainage pump and the discharge pipe to calculate and to verify.

根据局地测处提供的正常和最大涌水量，按《煤矿安全规程》和设计规范的要求，经过科学的计算和分析，针对排水泵和排水管进行了选择计算并校验。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。