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梭鱼,体细长,头短而宽,有大鳞,背侧青灰色,两侧鳞片有黑色竖纹。生活在沿海近岸江河或咸淡水交界的地方,以刮取水底泥土表面的硅藻类和有机碎屑为食。现将河口近岸两合水垂钓梭鱼方法简介给钓友。 相似文献
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美国康菲石油公司在渤海湾溢油事件中,相继采取傲慢无礼、闪烁其辞、避重就轻、欲盖弥彰等一套“忽悠”手法,推脱、拖延,企图“冲关”逃逸主权国的行政执法和因事态不断扩大所引发的民事索赔以及刑事追究。 相似文献
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正引子:杭州湾的联想1月7日,我乘坐CA1702航班来到杭州。当飞机飞临杭州湾上空时,我忽然想到一位曾在杭州湾工作过的同志讲过的故事。他说,20多年前,他还在渤海湾一所大学攻读博士学位时看到一条报道:一只鲸鱼在那个海湾搁浅了,奄奄一息。当地村民闻讯蜂拥而至,为的是 相似文献
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所谓一方水土养育一方人,滨海新区的蓬勃发展造就了我们这代滨海人,为我们孕育着社会各项事业腾飞的火种。
望着滨海新区这座现代新城,乘着新区作为环渤海经济核心引擎纳入国家发展战略的东风,矗立在渤海湾上的这颗璀璨明珠定会发挥其魅力给世人无限的遐想。 相似文献
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Based on the data of phytoplankton concentration and environmental factors in Bohai Bay from May to September in 2003. the relationship between environmental factors and phytoplankton biomass was analyzed. By analysis of variance, the weather condition was found to have no direct relation with phytoplankton biomass. Correlation coefficients showed that temperature, pH value,the concentrations of silicate and nitrate exhibited linear relationship with phytoplankton biomass.With principal component analysis, pollution types which affected the abundance of phytoplankton included point sources such as municipal and industrial effluents, agricultural runoff and earth's surface water. Using multivariate stepwise regression method and taking the correlation analysis results into consideration, a multi-step regression equation was developed to predict the concentration of phytoplankton in September 2003. Combined results show that temperature, pH value, the concentrations of silicate and nitrate are the critical ecological factors affecting the phytoplankton biomass in Bohai Bay. 相似文献
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《中学生数理化(高中版)》2008,(11)
诸福棠医学家.江苏无锡人.1927年毕业于北京协和医学院.1931年赴美进修,在美国纽约州立大学获博士学位.北京儿童医院教授、名誉院长.1931年到1933年成功地提取胎盘球蛋白, 相似文献