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球形煤气贮罐是由高强钢制成的且每日都要承受压力循环的容器。日本煤气协会研究了贮存容器的裂纹评估方法、用断裂力学建立大修检查周期方法和将超声法应用于贮罐的在役检查。
Spherical gas storage tank is made of high-strength steel and daily pressure to withstand the container. The Japan Gas Association studied methods for assessing cracking in storage containers, establishing overhaul inspection cycles using fracture mechanics, and applying the ultrasonic method to in-service inspections of storage tanks.