filter是什么意思

详细释义

• 0 any of several types of equipment or devices for removing solids from liquids or gases, or for removing particular types of light -- 濾器；過濾器

  • a water filter 濾水器

  • a dust filter 濾塵器

  • Ozone is the earth's primary filter for ultraviolet radiation. 臭氧層是地球上阻擋紫外線輻射的主要屏障。

• 1 a green, arrow-shaped light that is part of a set of traffic lights and tells drivers when they can turn left or right -- （表示可左轉或右轉的）交通分流指示燈

  • a traffic filter 交通分流指示燈

  • a left/right filter 左轉／右轉指示燈

• 2 to appear or happen gradually or to a limited degree -- 慢慢出現；滲入；透過

  • News filtered down to us during the day. 白天的時候消息慢慢傳到了我們這裡。

  • Reports about an accident began to filter in. 有關一次意外的報道開始慢慢傳開。

  • Sunlight filtered through the branches. 陽光從樹枝間灑落下來。

• 3 to remove solids from liquids or gases, or to remove particular types of light, using special equipment -- 過濾

  • The water is filtered to remove any impurities. 這種水經過濾以去除雜質。

  • Devices in the two chimneys would filter (out) (= remove) radioactive dust. 兩個煙囪裡的裝置可以濾除放射性塵埃。