The androecium is borne on the fused corolla.雄蕊群着生在联合的花冠上.Sometimes remnants of the corolla may also be present when the fruit is mature.有时当果实成熟时也留有花冠的残余.The old Corolla was a plain, basic automobile that was inexpensive...
机械工发现飞机的导航系统存在问题。Mechanics discovered problems with the plane's navigation system.机械工给汽车轴上了润滑油.The mechanic greased the car's axle.机械工将发动机中的油全部放走.The mechanic drained all the oil from the engine....
In this paper , the fractal theory of floc structure is briefly addressed.絮体结构和强度特征是絮凝过程的重要参数.Compared with box counting method , the proposed method avoids jumpiness of calculated fractal dimensions.较之盒维数算法, 避免了计算分数维数值的...