| 词汇 | primer |
| 释义 | primer noun uk /ˈpraɪ.mər/ us /ˈpraɪ.mɚ/ primernoun (PAINT)[ C or U ] a type of paint that you put on a surface before the main paint is put on: 底层涂料;底漆 It's best to use a coat of primer before the top coat.最好在刷表面漆前先刷一层底漆。 Paints, dyes & pigments annatto brazilwood colourant coverage dip dye enamel henna lacquer linseed oil logwood marbling non-drip paint pigmentation sienna spray gun thinner topcoat turpentine varnish primernoun (MAKE-UP)[ C or U ] a type of make-up that you put on your face under other make-up to make it go on more smoothly and last longer: 妆前乳 Primers are used under foundation to keep your make-up in place for hours.在粉底前使用妆前乳可以让妆容保持数小时。 Make-up & skin care aha alpha-hydroxy acid anti-wrinkle argan oil au naturel barefaced gloss greasepaint liner lip liner lipsalve lipstick made up mascaraed mask mudpack suntan lotion toner wand warpaint primernoun (BOOK)[ C ]old-fashionedus/ˈprɪ.mɚ/ a small book containing basic facts about a subject, used especially when you are beginning to learn about that subject入门书，初学者读物 Books: reference books almanac annual atlas bible citation index companion volume directory encyclopedia gazetteer grammar handbook headword lexicon manual reference book textbook the Yellow Pages thesaurus who's whoidiom yearbook primernoun (LESSON)a talk, experience, etc. that provides information from which you can learn: I think I should give you a quick primer on the basic setup and cast of characters. Information and messages advance notice advance warning advertisement aide-mémoire ammunition bumper sticker credential flier gory guideline handout info push notification radiogram readout relabel subtlety telemetry the gory detailsidiom the real deal primer | American Dictionaryprimer noun[ C ] us/ˈprɪm·ər/ a basic text for teaching something: As a primer for Navaho thinking, this book is a good place to start. primer noun[ C/U ] us/ˈprɑɪ·mər/ a type of paint put on a surface before putting on the main paint Examples of primerprimer Of 23 primers assayed, seven yielded a high number of polymorphic bands, sufficient to differentiate worms. Only variable sites are listed in the alignment, and the numbering scheme does not include the primers. Given an almost inexhaustible supply of arbitrary primers there is virtually no limit to the numbers of these markers in a genome. Sequencing was performed in both directions using the amplification primers. To test this hypothesis, amplification was repeated with a new set of primers for each of these loci. Amplification with primers f and g indicated that the deletions did not remove the third and fourth exons. The gene coding for the elastase was amplified using primers specific for the sequence of cercarial elastase and was cloned into a mammalian expression vector. With appropriate primers the method can also be adapted for the recovery from soil of geohelminth eggs of other parasite species. The result obtained with primers 2 and 4 is presented in panels (a) and (b), respectively. The primers were based on the central conserved region and the 5h region of the respective genes [14, 15]. Underlined nucleotides mark the position of the primers. Multiple sequencing primers were used to obtain complete sequence of the 1600-bp fragment with each clone having, on average, 5-fold sequence coverage. With the obtained sequence data new primers were designed to check whether the results could be repeated. The first sequencing reaction is performed using the primers that hybridize to the vector sequence and polymerize the strand complementary to the template. Allele-specific primers differ in the 3kterminal nucleotide to allow the different genotypes to be discriminated (details on request). See all examples of primer 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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