| 词汇 | zipper |
| 释义 | zipper noun[ C ] USuk /ˈzɪp.ər/ us /ˈzɪp.ɚ/(UKzip) B2 a device consisting of two rows of metal or plastic teeth-like parts that are brought together by pulling a small sliding piece over them, used for closing openings in clothing, bags, etc.: 拉链，拉锁 to pull a zipper up/down拉上／拉开拉链 I can't open my bag - the zipper is stuck.我的包打不开——拉链卡住了。 Kyrylo Glivin/EyeEm/GettyImages Fasteners for clothes belt brace buckle buckled button fly button something up button-through do (something) up eyelet fastener flies grommet press stud sash snap snap fastener stud suspender suspendersphrase toggle zipper | American Dictionaryzipper noun[ C ] us/ˈzɪp·ər/ a device for fastening together an opening in clothes, bags, etc., and consisting of two rows of little metal or plastic parts that can be locked together by sliding another part over them Examples of zipperzipper The net result is that for our loads, zippering is not limiting per formance. Even near the cathode, the model is consistent with the low level, late emission seen in the zipper data. A signalling cascade triggers actin assembly, leading to the formation of cell-surface extensions that engulf the anibody-coated pathogen by ' zippering up ' around it. Probing the folding mechanism of a leucine zipper peptide by stopped-flow circular dichroism. Finally, the zipper data show that even good pinches show significant variations with axial distance. Having established some confidence in the per formance of the zipper array, we turn to a review of its results. It is in principle also possible to have transient initiation of -sheet structure in the form of short, flickering zippers. Going up and down in the structure is analogous to closing and opening a zipper in a piece of clothing, whence the name. This is apparently because parallel b-sheets maximize favorable hydrophobic and polar zipper interactions for most amino-acid sequences. The zipper speed is well above 100 cm 0ms while the implosion velocity is below 100 cm 0ms. But for wire loads, there is no mass gradient, so there should be no zipper. The zipper implementation has made it easy to add a generalized bottom-up command, the local wrap. The negative current in the shunt can occur at the odd number of half-waves and 0or at zipper effect. The above scheme was applied to achieve self-replication of oligonucleotides, artificial template molecules as well as zipper-peptides. The closure of the neural tube begins in the vicinity of the future medulla and pons and moves downward and upward from there (sort of like a zipper). See all examples of zipper 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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