retraction

英 [rɪˈtrækʃn]

美 [rɪˈtrækʃn]

n.  撤销; 收回; 拉回

复数：retractions　

医学

BNC.23414 / COCA.21897

牛津词典

noun

• 撤销；收回
  a statement saying that sth you previously said or wrote is not true
  1. He demanded a full retraction of the allegations against him.
     他要求完全收回针对他的言论。
• 收回；拉回
  the act of pulling sth back (= of retracting it)
  1. the retraction of a cat's claws
     猫爪子的回缩

柯林斯词典

• VERB 收回，撤回(所说的话或写的东西)
  If youretractsomething that you have said or written, you say that you did not mean it.
  1. Mr Smith hurriedly sought to retract the statement, but it had just been broadcast on national radio...
     史密斯先生想赶快收回这项声明，但它刚刚已经在国家电台播出了。
  2. He's hoping that if he makes me feel guilty, I'll retract.
     他指望着如果他能让我感到内疚，我就会收回所说的话。
• V-ERG （使）缩回;（使）缩入;（使）收起
  When a part of a machine or a part of a person's bodyretractsoris retracted, it moves inwards or becomes shorter.
  1. Torn muscles retract, and lose strength, structure, and tightness.
     撕裂的肌肉会收缩，丧失原来的力量、结构和紧实度。
  2. ...when the aircraft's wheels were retracted.
     当飞机的轮子收起来的时候

英英释义

noun

• the act of pulling or holding or drawing a part back
  1. the retraction of the landing gear
  2. retraction of the foreskin
• a disavowal or taking back of a previous assertion
  Synonym:abjurationrecantation

双语例句

• Application of self-etching adhesive and gingival retraction to treating wedge-shaped defect
  排龈术和自酸蚀黏结术联合治疗楔状缺损疗效分析
• The dehydration of the body after death can cause retraction of the skin around hair and nails, giving the illusion that they have grown.
  在人死后，身体的脱水可引起头发和指甲周围的皮肤收缩，造成指甲生长的错觉。
• Aim To observe the effect of eyelid reconstruction in treatment of bl epharocoloboma and cicatricial lid retraction.
  目的观察眼睑再造术对眼睑缺损、疤痕性眼睑退缩的治疗效果。
• The severity of the muscle injury is affected by the degree of the intramuscular pressure and the length of the retraction time.
  肌肉损伤的严重程度受肌肉受压程度和牵拉持续时间影响。
• Contrast study on the clinical effects of electrosurgical retraction and secondary gingival retraction
  不同排龈药物对牙龈炎症的影响及排龈效果的比较电刀排龈法与二次排龈法临床效果的对比研究
• The retraction loss and the slide of the steel bar bundle are reduced, and anchoring reliability is enhanced.
  并能减少钢筋束回缩损失及滑束现象，增加锚固的可靠性。
• Objective The PFM prosthesis by using gingival retraction has been observed something about its effect and the condition of gingival tissues'injury.
  目的在烤瓷熔附金属冠桥修复的不同时期应用排龈技术，观察烤瓷修复的效果及对牙龈组织的损伤情况。
• Objective To compare the effect of gingival retraction paste and gingival retraction cord in the immediate restoration of teeth fracture.
  目的比较排龈膏与排龈线在劈裂牙即刻固定修复中的排龈效果。
• Clinical analysis on Duane's retraction syndrome in 28 cases
  Duane眼球后退综合征28例临床分析
• The retraction reductor has the advantages of simple structure and convenient use, is used for a double eyelid operation and is favorable to the enhancement of operative efficiency and effect.
  本牵开复位器结构简单，使用方便，用于重睑手术有利于提高手术效率和手术效果。