accumulations
n．
1. 积累，累积：逐渐增加的过程或结果。
2. 堆积物，积聚物：堆积起来的物质。
例句
Oil pools are valuable underground accumulations of oil, and oil fields are regions underlain by one or more oil pools.
油藏是珍贵的地下石油堆积物，而油田是由一个或多个油藏所组成的地下区域。
Thick accumulations of peat can form only if the swamp basin slowly subsides.
只有当沼泽盆地慢慢下陷时，厚厚的泥炭堆积才能形成。
The biggest challenge is water's inherent density. Accumulations crush all but the strongest gear.
最大的挑战来自于海水的固有密度，巨量的海水足以将最坚固的装置压碎。
