作者认为，椎弓峡部裂实质上主要是由局部应力增高而引起的疲劳骨折，而腰椎后伸与其关系最为密切。
The authors conclude that spondylolysis is mainly the fatigue fracture due to locally increased stress and is contributing most by backward extension of lumbar spine.
冲绳海槽是当今世界上唯一的在大陆边缘张裂形成的、处于早期演化阶段的活动性大陆边缘弧后盆地。
The Okinawa Trough (OT) is the solitary active backarc basin in the world that is formed by extensional rifting in the continental marginal zone and is in the early stage of evolution.
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