protraction

基本解釋

• n.延伸；伸長；制圖

同根派生

• protraction相關(guān)詞

英漢例句

雙語例句

• We see the conflict leading to a protraction of Libya’s oil shortages.
  我們看到?jīng)_突已經(jīng)造成了利比亞石油短缺的進(jìn)一步升級。
• Based on the analysis of distortion and protraction of warp and form of shedding, the problem that dobby can not fully develop its capacity is located.
  通過對開口時經(jīng)紗變形伸長特性和開口形式的分析，指出了多臂機(jī)不能充分發(fā)揮效能的問題所在，并給出了解決辦法。
• The importance of projection protraction CAI was introduced. The environment and flow of courseware CAI were discussed. Several problems that should be paid attention to were also pointed out.
  簡要介紹開發(fā)工程制圖CAI教學(xué)課件的重要性，重點論述開發(fā)CAI課件的環(huán)境和流程，指出了開發(fā)課件中應(yīng)注意的幾個問題。

• protraction更多例句

詞組短語

短語

• Protraction pattern 拖延型式遲滯
• protraction movement 前伸運(yùn)動
• protraction ? 伸長
• maxillary protraction 前方牽引;上頜前牽引;上頜前方牽引;前牽引
• Low Protraction 低伸長

• protraction更多詞組

英英字典

柯林斯英英字典

• the act or process of protracting

• protraction劍橋字典
• protraction柯林斯字典

專業(yè)釋義

醫(yī)藥科學(xué)

• 前方牽引

  Objective To evaluate the maxillary protraction appliance permanent teeth combined rapid expansion of early bone anterior crossbite effectiveness.
  目的 評價前方牽引器聯(lián)合快速擴(kuò)弓矯治恒牙早期骨性前牙反牙合的有效性。

• 前伸

生物學(xué)

• 伸展；突出(retract之對)：