自制如图1所示多用转架．其中f料易得，制法简单，实验效果明显，便于在中学物理儿小兮自然实验课中推广使用．工．葡萄糖瓶2、6瓶塞3．玻璃管4、7．铝制毛线针5．药瓶木塞8．熔融蜡涂层图1器材及制法如图1：①葡萄糖瓶（输液用玻璃瓶）；②瓶塞，甲央钻一通孔；③根据通孔直径 Homemade as shown in Figure 1 Multi-purpose turret. Which f material is easy to get, the system of law is simple, the experimental effect is obvious, easy to use in the middle school physics small Xi natural experiment class. work. Glucose bottle 2,6 stopper 3. Glass tube 4,7. Aluminum yarn needle 5. Cork bottle 8. Melting wax coating Figure 1 equipment and manufacturing method shown in Figure 1: ① glucose bottle (infusion glass bottle); ② cork, a central hole drilling; ③ according to the diameter of the through-hole