liquate

To protect the security and stable of film meter, should select some kinds right airproof liquate.

为保证隔膜使用可靠性安全性，应根据不同用途选择合适的密。

For the meter which has liquate inner, can work in strong vibration or pressure pulse situation.

于在外壳内充的仪，能够抗工作环境振动减少介质压力的脉动影响。