位置 1.(所在或占的地方) seat; place; location; site 大家都按指定的位置坐了下來。 everybody took their places.2.(地位) place; position 她曾是個(gè)在政府中占有重要位置的女人。 she was a woman of high position in the government.3.[航] position
Based on the diopter status of myopia and hypermetropia , the paper presented the principle of excimer laser refractive surgery , the change of impacting cornea curvature on the cornea diopter . in this chapter , we also discussed excimer laser - corneal tissue interactions and photoablation . determine the relationship between the fluence of arf excimer laser and the cornea ablation rate , attain the relationship between the energy density and the ablation depth 研究了激光與生物組織相互作用、光蝕作用及準(zhǔn)分子激光消融角膜的機(jī)理;首次定量研究193nm準(zhǔn)分子激光高斯光束的切削量與能量密度的關(guān)系,計(jì)算單個(gè)激光脈沖角膜切削量;發(fā)現(xiàn)了角膜曲率對(duì)切削效果的影響,首次提出了角膜曲率半徑、切削位置與切削深度的關(guān)系;首次定量確定了激光光斑參數(shù)及其排列方式對(duì)術(shù)后角膜表面粗糙度的影響,為更精確實(shí)現(xiàn)角膜切削和提高切削后角膜表面光潔度、減少手術(shù)后角膜渾濁及角膜表面術(shù)后不規(guī)則提供了理論依據(jù)。