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.
他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.而在答应出现动力性外旋时则出现了更明显的滞后现象.Hysteresis was significantly greater when dynamic external rotation was allowed to o...
我们发现在许多复合材料中正在采用较多量的粉状填料.We find relatively large volumes of particulate fillers being used in many composites.其多量维生素c能增强肌体抗癌能力.Its abundant Vitamin c can strengthen the organism anticancer treatment ability.尘粒具有便宜的小型外壳,...