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- Final simulation results prove that the optimized scheme can enhance the nominal electron energy, decrease the surface dose and the bremsstrahlung dose, and ameliorate the dose uniformity. 模擬計算結果表明：優(yōu)化方案提高了加速器的標稱(chēng)能量，降低了表面劑量和軔致輻射劑量，使劑量均勻性得到明顯改善。
- Coefficient of surface dose rate 表面劑量率系數
- Methods The entrance surface doses (ESD) to patients measured with TLD and the image quality of radiographic films were evaluated on the basis of CEC image quality criteria. 方法 QC前后用熱釋光劑量探測器測量病人入射體表劑量，并用歐洲共同體（CEC） 影像質(zhì)量標準對已測量劑量的病人X 射線(xiàn)膠片影像質(zhì)量進(jìn)行評價(jià)，做統計學(xué)分析。
- The field artillery pounded away at the for tress. 野戰炮兵連續炮擊那座要塞。
- The crowd cheered as the teams entered the field. 球隊入場(chǎng)時(shí)觀(guān)眾們?yōu)橹畾g呼。
- On the map the drains of each field are laid sown. 地圖上標有每一塊地的排水溝。
- Right-handed batters usually hit to left field. 右撇子擊球手把球打到左外野。
- The runaway horse was cornered in a field. 那匹跑掉的馬在田地里被圈住了。
- Tent is used by camper and by soldier in the field. 露營(yíng)的人和戰地的士兵用帳篷。
- The children had a field day with their new toys. 孩子們玩新玩具玩得十分開(kāi)心。
- An oil well blew out in the oil field. 油田里有一口油井發(fā)生井噴。
- He is an adventurer in financial field. 他是金融領(lǐng)域的投機者。
- The castle frowned down upon the field. 城堡呈威壓之勢俯視原野。
- The peasants fertilize the field by using manure. 農民們施肥來(lái)使土地肥沃。
- The field of operations has been staked out. 軍事演習的區域已經(jīng)劃定。
- The experimental study of the optimized kVp and it's relationships with the surface dose of phantom and the phantom thickness 最佳kVp與體模表面劑量和體模厚度關(guān)系的實(shí)驗研究
- They were pioneers in the field of microsurgery. 他們是顯微外科學(xué)領(lǐng)域的創(chuàng )始人。
- A football field should be level. 足球場(chǎng)地應該平坦。
- He played the field academically. 他在學(xué)術(shù)上涉獵廣泛。
- I like to watch field and track events. 我喜歡觀(guān)看田徑比賽。
