| 词汇 | dilation |
| 释义 | dilation noun[ U ] medical specializeduk /daɪˈleɪ.ʃən/ us /daɪˈleɪ.ʃən/ the state of being larger or more open than usual扩张 Becoming bigger accrete accrue anti-growth balloon bell billow bump engorge engorged enlarge enlargement expansion over-expansion pile pile on the poundsidiom puff puff up put something on regenerate stretch As she lowered her head in the movement, the dilation of her nostrils repressed a smile of satisfaction. During the operations of dilation of the urethra, I passed some gravel. Her eyes lost their dilation of fear. She knew it by the sudden softening of his voice as he spoke to her, by the curious brilliant dilation of his eyes as they followed her about the room. Systole and diastole, the contraction and dilation of the heart and arteries. dilation | American Dictionarydilation noun us/dɑɪˈleɪ·ʃən/ dilationnoun (BECOMING WIDER)[ U ]esp. medical the process of becoming wider or more open: dilation of blood vessels dilationnoun (CHANGING SHAPE)[ C ] geometry a change in the shape of a figure in which is it made larger or smaller according to a scale (= relationship of sizes) Examples of dilationdilation Two sequences are equivalent if and only if they admit contractions which have a common dilation. On cardiac examination, an abnormal four-chamber view was detected, mainly due to dilation of the right atrium. Of these, four had a good result following the second dilation and the remaining two underwent elective surgical repair because of inadequate relief of obstruction. We have chosen to use dilation and compactness here, because we will use the same technique again when bounding smoothed projections. Specific indications for reoperation, or attempted balloon dilation when there is restenosis and/or distortion, remain controversial and require further investigation. Based upon our results, the balloon dilation can be considered as thefirstchoice procedure for treatment of isolated aortic stenosis in infancy. At that time, aneurysmal dilation of the pulmonary trunk was confirmed, and she was treated with anti-staphylococcal antibiotics until the fever and rash disappeared. In this case, dilation and contraction in the time domain may be equivalent to ascent (descent) and descent (ascent) in pitch. For example, examination of the eyes, without dilation of the pupils, may reveal only a cataract and not the maculopathy underneath. Signals proposed for use in human-computer interfaces include skin conductance, heart rate, pupil dilation, and brain and muscle neural activity. For infants, when undertaking balloon dilation, 53% of centres discussed surgery for recoarctation, and 85% for primary coarctation. When undertaking balloon dilation for pulmonary stenosis, 42% mentioned the possibility of surgery when treating infants, and 38% when treating older children. In room air the systemic arterial oxygen saturation improved to 81% immediately after balloon dilation. Reopening of the arterial duct occurred immediately after dilation in a patient aged eight years. To summarize, adolescents who were born preterm exhibit indications of early brain injury, such as ventricular dilation, on brain scans. See all examples of dilation 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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