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１．原理：水位差引起水的流动。２．步骤：如图１。①找多条小口径带夹到塑料管，其外径略小于水模腔注水口内径，即可插入并留空隙。该塑料管也可用医院随处可见的输液管。②用桶盛装注满所有水模所需的蒸馏水。③将各条塑料管内注满水，用夹夹住使其不会流动。④将各条管一?
1. Principle: water level difference caused by the flow of water. 2. Steps: Figure 1. ① to find a number of small-diameter plastic pipe clip, its outer diameter slightly smaller than the diameter of water injection mold cavity, you can insert and leave gaps. The plastic tube can also be used in the hospital infusion tube. ② filled with buckets filled with distilled water required for all water modes. (3) fill each plastic tube with water and clamp it so that it will not flow. ④ all the control of a