Accumulations of trash and silt should be near the primary element.泥砂和废料的淤积要逐渐靠拢基本元件....accumulations of dirt.积尘Others are merely accumulations of coral and skeletal debris.而另一些则仅仅是珊瑚和骸骨碎片的堆积.Not all accumulations of hyd...
Not all accumulations of hydrocarbons are necessarily the result of hydrodynamics.并不是所有烃类的储集都必然是水动力的结果.Accumulations of trash and silt should be near the primary element.泥砂和废料的淤积要逐渐靠拢基本元件.Others are merely accumulations ...