[名词解释] 生境(Habitat)
[名词解释] 营养物质(nutrient)
[名词解释] 栖息地(habitat)
[名词解释] 物质循环(Nutrient Cycle)
[名词解释] 有效态养分(available nutrient)
[单选题]A.s there is less and less coal and oil, scientists are exploring new ways of making use of ____ energy, such as sunlight, wind and water for power and fuel.A. primary B. alternative C. instant D. unique
[名词解释] 通量阱 flux trap
[单选题]dia FLUX为特殊的低通量透析膜,膜的总面积为()m2。A . 1.4B . 1.5C . 1.6D . 1.8E . 1.9
[名词解释] 通量展平 flux flattening