| 词汇 | obstruction |
| 释义 | obstruction noun uk /əbˈstrʌk.ʃən/ us /əbˈstrʌk.ʃən/ [ C or U ] something that blocks a road, passage, entrance, etc. so that nothing can go along it, or the act of blocking something in this way: 阻塞物，障碍物 There's some kind of obstruction on the railway tracks.铁轨上有障碍物。 [ U ] behaviour or actions that prevent something from happening or working correctly: 阻碍；阻止，阻挠；妨碍 They were charged with obstruction of the police/of justice (= preventing the police/law courts from doing their jobs).他们被指控妨碍警方执行公务／司法公正。 [ U ] in sport an occasion when one player gets in the way of another and so prevents them from moving freely: （体育项目中的）阻挡犯规 The referee said it was obstruction.裁判判定这是阻挡犯规。 Difficult things and people a (heavy) cross to bearidiom albatross ball and chain bane be dead meatidiom be in the clearidiom bump chill equation hassle hiccup hindrance hot potato impediment nut snag stumbling block teaser teething troubles thorn in your flesh/sideidiom You can also find related words, phrases, and synonyms in the topics: Preventing and impeding obstruction | American Dictionaryobstruction noun[ C/U ] us/əbˈstrʌk·ʃən, ɑb-/ law Obstruction of justice is the act of preventing the police or law courts from doing their job. Examples of obstructionobstruction Physical obstructions, concrete blocks, trenches, and pits make internal movement difficult, as do frequent curfews and closures. While in the above cases the closing conditions imply infinitely many independent obstructions to trivialization, for actions of many other groups various rigidity phenomena appear. Inconvenient obstructions like the old gaol-house were demolished. The above discussion is based upon the assumption that the topography is uniform with no nearby obstructions. We present here our current experience in the management of such obstructions. We still do not understand very well what these global obstructions are. The focus should be upon the recognition of unrelieved obstructions within the outflow tracts and/or residual shunts. Of course, these data are limited by die small number of pulmonary venous obstructions encountered. Coronary ostial obstructions were detected and successfully dilated in 2/26 patients. Family history did not reveal cardiopulmonary anomalies, except for frequent recurrence of pulmonary airway obstructions necessitating inhalative bronchodilatatory treatment in the older brother. To give a practical characterization of the obstructions, we introduce some operations which preserve path-width at most two. The two main obstructions to shadowing are the existence of homoclinic tangencies and of heterodimensional cycles. Topological obstructions to the integrability of geodesic flows on nonsimply connected i manifolds. Our data demonstrate that endovascular stents can provide effective relief of residual obstructions in the early postoperative period. In tight obstructions gradual balloon angioplasty leads to augmentation of the newly created venous channel. See all examples of obstruction 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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