砂

• These units are employed as grit arrestors on small cupolas and in boiler plant operations .
  这种装置在小型冲天炉和锅炉运行中是作为砂粒分离器使用的。
• Channel deposits, consisting of sand, silt and clay, fill the valleys cut by a river system .
  河道沉积由砂，粉沙和粘土组成，充填于河流切割的河谷之中。
• The deepest relief along the bar is on the shoreward side where it is backed up by a lagoonal channel .
  砂洲上最陡峻的地形位于泻湖水道积滞处的向滨一侧。
• If the wave energy is weak coastal barrier sands do not form where the delta meets the sea .
  如果波浪能量低，在三角洲与海交汇的地方就不会形成海岸障壁砂。
• In stage 3, all continental beds and most of the marine sand of stage 1 have been eroded .
  在第三阶段，于第一阶段形成的全部陆相层和大多数海相砂层被浸蚀殆尽。