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This thesis mainly concentrates on the the hadrons which are recently discovered by the BES Collaboration and the Babar Collaboration, mostly we use phenomenological models of hadron structure to estimate the hadron mass, to study the production properties and decay properties and so on.

进一步我们指出X(1835)在γ(1S)→γX(1835)和J／ψ→ωX(1835)中的产生率很小，因而很难被观测到，这样很自然地解释了为什么CLEO合作组在γ(1S)的辐射衰变中没有观测到X(1835)。

As he flies south to Punta Arenas, Mr Ban will see dozens of glorious glaciers, almost all of them (87% by one recent estimate) retreating and thinning.

当潘基文往南飞往Punta Arenas的时候，他会看到许多壮观的冰山，其中大部分（根据一项估计是87%）在融化在变小。

Another study compared the actual use of fertilizers by farmers in Puebla, Mexico, with an estimate of the profitmaximizing use.

另一项研究将墨西哥普埃布拉农民的实际化肥用量与利润最大化时的估计量作了比较。

Late last year, the Greek government set in motion its current crisis by increasing its 2009 budget-deficit estimate, initially 3.7% of GDP, to nearly 13% of GDP.

去年底，希腊政府把其2009年预算赤字预估从最初占GDP的3.7%增加到接近GDP的13%，从而引发了当前的危机。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。