Acoustic Travel Time Formation Factor Formula
average time between maintenance
formation time constant
formation time limitation
formation time of bearing capacity
formation time of Kumkury Desert
mean time between failures
平均故障间隔时间
平均无故障工作时间
事故平均间隔时间
平均无故障时间
故障平均间隔
平均故障时间
oil pool formation time
time between two cycles
interaction between rock soil and groundwater
anhydrite rock formation