In April 2000 46-year-old Xia Zhimin subject to change jobs in the organization of the safety valve checks.
2
针对现行人工在线校验安全阀存在的校验准确度差、速度慢等问题，研制了自动在线安全阀校验整定系统。
An auto on line safety valve checking and adjustment system is developed to solve the problems of poor degree of accuracy and slow speedy that exists in the man made system.
It is shown that medium causticity, adhesiveness, temperature and pressure are factors of safety valve lapse and safety valve inspection time based on the analysis the reasons of safety valve lapse.
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