粉

• Channels are incised by streams into the underlying red siltstones .
  古河道由水流切割而侵入下伏的红色粉砂岩中。
• Ash is conveyed to the disposal point at power plants in various ways .
  在发电厂粉灰通过不同的方式运送到处理地点。
• These particles range from coarse silt to sand or pebble size .
  这些颗粒的大小变化范围是从粗粉砂级到砂级或细砂级。
• The presence of fragments of silicified siltstone retains their original bedding .
  硅化粉的砂岩碎块保留有原始层面。
• Aluminum powder is placed in a saturated solution of ammonium perchlorate in water .
  铝粉放在过氯酸铵的饱和溶液中。
• The secondary screens receive the coal from the crushers and remove the fines .
  经压碎后的煤通过第二道筛，筛出细粉。
• The other method is to pass the powder through 200 or fine mesh screen .
  另一种是把软木粉用200目或更细的筛网进行筛选。
• Many genes are involved in the formation of anthocyanin pigments in the aleurone .
  糊粉层中花青素的形成涉及到许多基因。
• Coarse material is conveyed by a stream of air to variable speed whizzer-separator .
  粗料由空气流输送到变速风力选粉机那里。
• Alternatively, a reflective type of adhesive containing aluminium powder may be used .
  此外，也可采用含有铝粉的反射型粘接剂。