短暂的繁荣

Some will no doubt flourish, but if the trend continues, as it will for at least some decades, clams, mussels, conches and all creatures that grow shells made of calcium carbonate will struggle.

上升 。有些物种会因此得到短暂繁荣，这是毫无疑问的，这种趋势至少在接下来的几十年内还会继续，但假如那时还不停止，那么，包括蛤、蚌、海螺等具有由碳酸钙形成的贝壳的贝类动物的生存就堪忧了。

Once described by this newspaper, perhaps with undue harshness, as "the hopeless continent", it could yet confound its legion of gloomsters and show that its oft-heralded renaissance is not just another false dawn prompted by the passing windfall of booming commodity prices, but the start of something solid and sustainable.

非洲曾经被本刊过分的形容为&无望大陆&，他仍可能令一大票悲观论者满头雾水；此次与以往常常提前宣布的复兴不同，不是商品价格意外的短暂繁荣带来的又一个黎明假相，而是坚实持久的变化。

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。