| 词汇 | cotton-wool |
| 释义 | cotton wool noun[ U ] UKuk /ˌkɒt.ən ˈwʊl/ us /ˌkɑː.t̬ən ˈwʊl/(UScotton) cotton in the form of a soft mass, usually used for cleaning your skin: （通常用于清洁皮肤的）药棉，脱脂棉 cotton wool balls/pads棉球／垫 dorioconnell/iStock/Getty Images Plus/GettyImages Toiletry & perfumes aftershave agarbatti air freshener bath bomb bath salts binturong emery board musk nail scissors sanitary shave shower gel SPF swab toilet soap toothpick unscented washbag wax melt ylang-ylang You can also find related words, phrases, and synonyms in the topics: Medical dressings, supports & devices Examples of cotton woolcotton wool To encourage oviposition, filter paper was placed on top of moistened cottonwool in a tubular support at the base of the cages. A small container of cottonwool soaked with water was also placed in the experimental arena, as were pollen, honey and sugar cubes. All air entering the building passed through cottonwool filters. A small container of cottonwool soaked with water was also placed in the experimental arena so flies were permanently water-sated. A piece of cottonwool saturated with 10% honey solution was supplied in each vial as food source for the adult wasps. The cut stems were placed in a conical flask filled with water and sealed around the base of the stem using cottonwool and parafilm. All cocoons that formed from parasitized hosts were removed from the stems and kept separately in vials plugged with cottonwool. Leaves were maintained fresh during the experiment by small plastic vials with water and cottonwool surrounding the petiole. The tubes were covered with cottonwool and kept in an incubator at the temperature and relative humidity indicated above. Each vial contained a single wasp and the vial was closed with two plugs of cottonwool before release. Each assay was performed with two germination chambers (replicates) containing 50 seeds placed on a layer of cottonwool moistened with distilled water. Both ends of each tube were plugged with cottonwool. Emerging insects were provided with water-soaked cottonwool, honey droplets, and a yeast/sugar diet. In order to release the parasitoid, each vial could be opened from the outside of the container by pulling strings that were attached to the cottonwool plugs. An 8% sugar-water solution put in a vial plugged with cottonwool was provided to feed the moths, and balsam fir branches bearing lichens were added for oviposition. See all examples of cotton wool These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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