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a filter中文什么意思

发音:   用"a filter"造句
  • a滤光镜
  • filter:    n. 1.滤器,滤纸,过滤用料[砂、 ...
  • by filter:    按照事件过滤器选择
  • the filter:    滤波器
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例句与用法

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  1. A filter traps dust from the air .
    过滤网可存住空气中的尘埃。
  2. Under appropriate conditions a multilayer may also be employed as a filter .
    在适当条件下,多层膜还可作滤波器。
  3. It is possible to use a plutonium foil as a filter to remove the second-order contamination .
    可用钚箔作为过滤器消除二级干扰。
  4. 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。
  5. The crude dye is collected on a filter and then recrystallized from ethanol containing a small amount of piperidine .
    粗染料过滤,然后在少量含有哌啶的乙醇中重结晶。

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