| 1. | Report on historic relic survey of the submersed area of qiaoqi reservoir in baoxing county
宝兴硗碛水库淹没区文物调查报告 |
| 2. | At present the submersed macrophytes in the lake are almost absent but floating plant
现在该湖沉水植物消失，菱等浮叶植物却泛滥成灾。 |
| 3. | Estimation of n loss loading by runoff from paddy field during submersed period in hangjiahu area
杭嘉湖地区淹水稻田氮素径流流失负荷估算 |
| 4. | Standard guide for conducting static , axenic , 14 - day phytotoxicity tests in test tubes with the submersed aquatic macrophyte , myriophyllum sibiricum komarov
在装有浸入式水生大型植物狐尾藻属sibiricum蜀试验管里进行静态无菌和14日植物毒性试验的标准指南 |
| 5. | Taxonomic groups of zoobenthos were significantly correlated with biomass of submersed aquatic macrophytes , depths , secchi disk transparencies , total phosphorus and total nitrogen contents
底栖动物各个类群的现存量与水草生物量、水深、透明度、总磷和总氮的关系均较密切。 |
| 6. | There were 119 species of wetland plants belonging to 82 genera and 44 families in yulin . 32 species were hygrophyte plants , 8 species were submersed plants , 11 species were floating plants , and 68 species were emergent plants
玉林湿地植物有44科82属119种，其中湿生植物32种，沉水植物8种，浮水植物11种，挺水植物68种。 |
| 7. | Fish stocking in niushan lake eliminated submersed macrophytes and gave indirect effect on biomass in niushan lake to an extent that gastropod was only 1 / 5 as much of a typical macrophytic lakes such as hong lake
牛山湖中鱼类的放养使水草出现衰退，该湖底栖动物虽然仍以螺类等刮食者为上，但生物见只有洪湖等典型草型湖泊的1 5 。 |
| 8. | For the relationships between zoobenthos and environmental factors , results showed that zoobenthic standing crops were positively correlated with submersed aquatic macrophytes , total phosphorus and total nitrogen contents but were negatively correlated with depths and secchi disk transparencies
环境分析表明底栖动物总的现存量与水草生物量、总磷总氮含量均正相关，与水深、透明度均负相关。 |
| 9. | Submersed land area including different utilizing type by sea water are calculated and the potential economic loss and population affected by the submerged disaster are assessed for no defence ， different sea - level rise and high water level . furthermore , special topic maps of fatalness of sea level rise , vulnerability of land system , socio - economic and ecological vulnerability , and defending ability are produced . the following results are combined with the basic study cell based on area source model following mathematical models of risk evaluation , considered of defence or no defence
运用海平面上升灾害危险性、土地系统易损性、社会生态经济易损性和抗灾能力的数学模型，在mapinfo软件下运行，得到该区上述四种评估因子的专题图；并分别按照考虑抗灾能力以及不考虑抗灾能力两种情况，用海平面上升灾害风险评估模型融合各因子，得到辽河三角洲（盘锦市）海平面上升灾害综合风险评估图。 |
| 10. | The control system of mould level is crucial to improve the slab quality in the continuous casting process , pid controller is used in the traditional mould level control , and it has some defaults , such as : at the start - up or finishing period of casting or during the changeover of tundish , pid control has a bad effect , its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate , and pid control can not overcome the disturbances resulted from the change of casting speed
结晶器液位控制系统是提高连铸产品质量的关键环节，传统的连铸机液位控制方法采用常规的pid控制，存在如下不足：开始、结束浇注和换中间罐浇注时，控制效果差，超调量大，过渡时间长；塞棒头和浸入式水口被腐蚀后引起控制精度差；浸入式水口堵塞物的突然脱落所引起的液位剧烈波动；无法克服拉速波动引起的扰动。 |
