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.
通过对安全阀失效原因的分析，得出介质腐蚀性、粘度、温度压力是使安全阀失效的因素，同时也是影响安全阀校验周期的因素。
A number of meteorological factors influencing surface air temperature lapse rate over mountainous regions are discussed.
本文论述了山区气温直减率的若干影响因子。
A number of meteorological factors influencing surface air temperature lapse rate over mountainous regions are discussed.
本文论述了山区气温直减率的若干影响因子。
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