查询词典 purse net

Ecological risk index of heavy metals in the sediment exhibited a medium pollution risk of combined heavy metals in infall port and low risk in the purse-net agricultural region.

根据国家土壤质量一级标准计算的底泥重金属潜在生态风险性指数表明，进水口区域为中等污染风险，而湖泊的围网养殖区处于轻度污染风险。

Nearly 3 quarters maintain rank tertiary Netease all the time in 13% market share of the left and right sides, nevertheless after June, ever helped 9 cities swim into purse net of the first group " demon animal world " will hand in by Netease operation.

排名第三的网易近三个季度一直维持在13%左右的市场份额，不过6月之后，曾帮助九城入围网游第一集团的《魔兽世界》将交由网易运营。

A series of control measures were proposed, such as comprehensive pollution control, construction of decontaminated wetlands in estuarine area, construction of the ecological bank and lakeside wetland, removal of the purse net, dredging and restoring the topography of lake basin, vegetation restoration, ecological restoration and management, and so on.

提出了污染综合防治、河口强化净化型湿地建设、生态护坡与湖滨带湿地建设、湖区养殖围网拆除、清淤与湖盆形态修复、湖区植被恢复与生态修复和湖泊生态管理等一系列整治对策。

Not only have fishing vessels increased in number, but large-scale fishing boats have greatly strengthened the ability to catch fish on the distant high seas. For example, the most effective type of net, the purse seine, began to be used in 1982, and by 1991 there were already 44 ships using it to catch bonito, tuna, and other migratory fish. People began to widely consume canned tuna, tuna salad, and tuna rice rolls.

渔船增多，大型渔船更加强远洋捕捞能力，像是最有效率的大型围网是在七十一年开始启用，到八十年代已经拥有四十四组这种捕捞鲣、鲔等回游性鱼类的渔船，於是海底鸡罐头、鲔鱼沙拉、鲔鱼御饭团成为寻常口味。

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。