滤

• Colour filters are not very effective in isolating narrow spectral bands .
  一些滤色片不能很有效地分离狭窄的光谱带。
• This idempotent ultrafilter enables us to find an appropriate infinite set .
  这个幂等的超滤子能使我们找到一个适当的无限集。
• Organic compounds may also tend to reduce filtration by blinding the filter cloths .
  由于堵塞滤布有机化合物还会减慢过滤速度。
• Every filter is contained in a maximal filter, called ultrafilter .
  每个滤子包含在一个极大的滤子里，一个极大滤子称为一个超滤子。
• It produces lymphocytes, removes bacteria from lymph, and filters out foreign bodies .
  它产生淋巴细胞、排除淋巴管中的细菌并滤出异物。
• Screening and sedimentation are the two types of primary treatment used for textile wastes .
  筛滤和沉淀是用于纺织废水的两种一级处理方法。
• The lack of humus and the excessive leaching make this soil almost useless for agricultural purpose .
  缺少腐殖质和过度淋滤使这种土壤对农业几乎无用。
• The filter cake from the primary filtration is slurried with weak liquor from the secondary filters .
  一段过滤得到的滤饼与二段过滤得来的稀溶液混合而成为料浆。
• The filter cake from the primary filtration is slurried with weak liquor from the secondary filters .
  一段过滤得到的滤饼与从二段过滤机来的稀溶液混合成为料浆。
• A satisfactory approximation to monochromatic light can be obtained with a filter placed in front of the arc .
  在碳弧前面放一个滤光片就可以得到令人满意的近单色光。