| 单词 | filter bag |
| 释义 | > as lemmasfilter bag filter bag n. (a) a bag used as a filter; (b) Photography a coloured bag placed over a light source in order to change its colour. ΚΠ 1559Filter bag [see Compounds 1a]. 1676 R. B. Brief Acct. Choice & Famous Medicines 17 Let it run through a Flannel Cloth, or Filter Bag. 1851 Mechanics' Mag. 29 Nov. 436/2 The matters left in the filter bags are to be treated as before described. 1946 Brit. Jrnl. Photogr. 22 Nov. 424/3 (advt.) Special Infra-red or Violet Flexible Filter Bag for flashlight effects and scientific work. 1969 Focal Encycl. Photogr. (rev. ed.) 609/1 Special deep red or almost opaque filter bags have also been used for infra-red photography. 2012 N. Queensland Reg. (Nexis) 1 Mar. 14 Any deposits dislodged from the pipes are captured in a filter bag at the end flush site. < as lemmas |
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