研究了重金属铜对异毛目纤毛虫多态喇叭虫 ( Stentor polymorphrus ) 的急性毒性影响.The actue toxic effect of heavy metal Cu ~ ( 2 + ) to Stentor Polymorphrus ( Ciliophora, Heterotrichida ) was studied....
As it strengthened the wind was veering southerly.随着风力加强，风向也向南偏转。Anyone veering too close to the convoys risks being shot.任何人改变方向,过于接近车队就有遭枪击的风险.The little boat kept veering from its course in such a turbulent river.小船在这...