powders

• Ceramic elements are made by pressing and sintering finely powdered materials .
  陶瓷元件是将仔细研磨的材料经过加压和烧结制成的。
• The coating is sprayed onto the specimen, air-dried to a soft powder .
  这种涂料喷涂到试件上去并在空气中干燥之后，即成为松软的粉末。
• The powder therefore collects at the displacement nodes, where the gas remains at rest .
  木屑就聚集在位移波节处，此处的气体是静止的。
• Electric charge may be detected qualitatively by sprinkling or blowing indicating powders .
  静电荷可以用撒布指示粉剂的方法，予以探测。
• The powders were neatly enough made up, but not with the nicety of the dispensing chemist .
  药粉制备得挺精致。但不如店里药剂师做得出色。
• She powdered her nose, straightened her collar, and coldly marched down-stairs .
  她给鼻子上搽了一点粉，又整了一下衣领，就冷冰冰地下楼了。
• The invention of percussion compositions for igniting powders is usually attributed to forsyth .
  通常认为用以引燃的击发药是弗尔赛思发明的。
• All the best of the meat and drink and the whole of the powder were collected in this place .
  所有最好的肉食，饮料和全部弹药都收藏在这个地方。
• Our powder has to take fire instantaneously so that its mechanical effect may be complete .
  只要火药能够很快地燃烧，使它的力量能得到充分的发挥就行了。
• The burning surface of the powder then increases, the pressure rises and the rocket may be blown up .
  此时，无烟药燃烧表面增加，压力上升，火箭可能爆炸。