leakproof material的用法和样例：
例句
- The gasholder was pressurized by the connection of a side plate with a piston through a kind of flexible rubber sealing material.
该气柜主要借助于一种柔性的橡胶密封材料将气柜侧板和活塞密封连接。 - It is designed with new sel material and buffer,with low starting pressure,stable operation,good seal,and long service life.
采用新的密封材料和络腮胡子冲结构，启动压力低，运动平稳，密封性好，使用寿命长。
