Among all factors discussed, sediment feature was the most important factor influencing the polychaete distribution besides salinity and DO at the bottome water layer. Development of the Temperature Field Model and the Temperature Analysis of Twin-roll Thin Strip Continuous Casting 沉积物类型显著影响多毛类的数量分布,而底层海水的温度和盐度对其也有一定的影响.双辊连铸薄带温度场模型及其温度分布特性