1·Over geologic time the central volcano becomes extinct, followed by erosion and subsidence beneath the sea surface, leaving the coral reefs as a ring around (or cap on) the submerged island remnant.
由于侵蚀和海底的下沉，经过地质时代的变迁，中心的火山已经不见踪影，而只留下珊瑚礁环绕或覆盖在沉入海底的火山岛上。
2·Thee authors of the study warn that continued subsidence poses a safety threat to the city of more than 2o million, with "a strong impact on train operations" one of the predictions.
该研究的作者们发出警告，持续不断的下沉正对这座有2千多万人口的城市带来安全威胁，其中的一项预测是“会对火车运行造成严重影响”。
3·One patient developed titanium mess cage subsidence, but revision was not necessary.
一个病人出现混乱钛笼的下沉，但并无必要去修正。
4·Where relevant, the design should include the effects of phenomena such as subsidence, heave, freezing, thawing, erosion, etc.
设计时应考虑相关现象的影响，例如下沉，上升，冰冻，融化，腐蚀等。
5·Experts say it is still too early to know if the canal's water deliveries will help recharge the aquifer and slow Beijing's rate of subsidence.
专家表示，想要知道南水北调能否帮助充盈含水层并减慢北京下沉的速度还为时尚早。