查询词典 refraction

objective to evaluate the clinical effect of high myopia treated with lasik by a small optical zones flying spot scanner machine.methods 364 cases (721 eyes) of high myopia were treated with lasik by the schwind esiris laser machine with small optical flying spot scanner.the ablation zone was single zone or multi zone.the ablation depth was range of 78～187μm.all cases were followed up for 3～12 months.the changes of their visual acuities,subjective manifest refraction and complications were observed.results postoperatively,at one day and 3 month the visual acuities were 1.0 or better in 72.0%（519/721） and 81.7%（589/721）.the diopter within ±1.00 was 89.7%（647/721） and 90.7%（654/721）respectively.the complications include:decentral ablation 3 eyes (0.42%),decentral flap 5 eyes (0.69%),epithelial ingrowth 5 eyes(0.69%),glare 15 eyes(2.08%).conclusion the clinical effect of high myopia treated with lasik by a small optical zones flying-spot scanner machine was safety and efficacy,although it needs more corneal tissues.

目的 评价小光斑飞点扫描式准分子激光lasik治疗高度近视的效果。方法采用德国schwind esiris准分子激光机对364例（721眼）高度近视进行了lasik治疗。切削模式采用单区或多区切削，切削总量为78～187μm。随访3～12个月，观察术后视力、屈光度和并发症等情况。结果术后裸眼视力≥1.0者，术后1天、3个月时分别为72.0%（519/721）、81.7%（589/721）；术后屈光度在±1.00d以内者，术后1天、3个月时分别为：89.7%（647/721）、90.7%（654/721）。主要的并发症有：偏中心切削3眼(0.42%)、瓣位置偏离5眼(0.69%)、角膜上皮植入5眼(0.69%)、眩光15眼(2.08%)。结论小光斑飞点扫描式准分子激光lasik治疗高度近视的临床效果安全有效，但是需要切削较多的角膜组织。

If a stone is pure black with no light refraction it is one sign that it is not a true black opal.

如果是纯粹的石头，没有光的折射，是一个黑色的迹象，这不是一个真正的黑蛋白石。

If a stone is pure black with no light refraction it is one sign that it is not a true black opal.

如果是纯黑色石头，没有光的折射，是一个迹象，表明它不是一个真正的黑蛋白石。

Utilizing this mathematics model, we discuss the varying tendency of minimum reflectance and resonance angle under the linear and nonlinear condition. In addition, we discuss the changes of the minimum reflectance, resonance angle, nonlinear refraction index and nonlinear absorption index verse light intensity.

利用该数学模型，讨论了线性和非线性情况下，最小反射系数和共振角的变化趋势，此外，我们还讨论了最小反射系数、共振角和折射率实部和虚部随着光强的变化。

The density, refractive index and molar refraction of glasses,and their relationship with composition had been measured.

测量了玻璃样品的密度，折射率和摩尔折射度，并分析了它们和玻璃组分的关系。

Measurement of thickness and index of refraction of transparent medium.

基于光学相干层析技术的光学表面间距测量方法。

An experienced formula about the connection of refraction index and consistence of several liquid［J］.

几种液体的折射率与其浓度关系的经验公式［J］。

The cavity of the first stage 152 may be filled with air or a gas with a desired index of refraction.

第一级152的空腔可填充有具有所期望的折射率的空气或气体。

Because of its high index of refraction and well stability, it is used to produce reduce reflection film.

CeO_2折射率高，稳定性好，常用于制备减反射膜等。

Refraction index of semiconductor material is a function of optical frequency, called dispersion relation.

半导体材料的折射率是光频率的函数，所以在计算光子晶体的能带结构时毖须考虑到色散关系。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。