The experimental rotated force induced different changes in different area of cat periodontal ligament. 受扭转力的猫尖牙牙周膜不同部位的微血管床的改变不同;
The suggested one is more effective for drawing generation of questions in descriptive geometry. Two new descriptive models are feasible and more scientific by the experimental necking force. 这一方法有助于提高求解画法几何问题的作图效率。对所建立的新的数学模型进行了验证;
Experimental Study on Force Damage of Reinforced Concrete Pipe Culvert 钢筋混凝土圆管涵受力破坏实验研究
Experimental study on force of PDC cutter breaking rock PDC切削齿破岩受力的试验研究
Experimental study of force and power parameters for planetary cross-rolling mill 行星斜轧机力能参数的实验研究