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- Parabolic refractive lenses 抛物形折射透镜
- Having a maximal visual acuity of the better eye,after correction by refractive lenses,of one-tenth normal vision or less(20/200 or less on the Snellen test). 瞎的，失明的通过折射矫正后，最好眼最大视力敏感度为正常视力的1/10或少于1/10的（斯奈伦测试20/200）或更低。
- Having a maximal visual acuity of the better eye, after correction by refractive lenses, of one - tenth normal vision or less(20 / 200or less on the Snellen test. 瞎的，失明的通过折射矫正后，最好眼最大视力敏感度为正常视力的1/10或少于1/10的（斯奈伦测试20/200）或更低
- Having a maximal visual acuity of the better eye, after correction by refractive lenses, of one-tenth normal vision or less(20/200 or less on the Snellen test). 瞎的，失明的通过折射矫正后，最好眼最大视力敏感度为正常视力的1/10或少于1/10的（斯奈伦测试20/200）或更低
- Having a maximal visual acuity of the better eye, after correction by refractive lenses, of one-tenth normal vision or less (20/200 or less on the Snellen test). 瞎的，失明的：通过折射矫正后，最好眼最大视力敏感度为正常视力的/0或少于/0的（斯奈伦测试20/200)或更低
- A focusator composed of diffractive optical element(DOE) and a refractive lens, is used for Gaussian beams with higher power density and lager beam radius. 由衍射光学元件（DOE）和折射透镜组成的衍折射光学元件，用于较大功率密度和光束半径的高斯光束的聚焦。
- Dynamics of Spatial Soliton in a Nonlocal Nonlinear Medium with Transverse Parabolic Refractive Index Distribution 梯度折射率非局域介质中空间孤子振荡行为研究
- Have your glasses got plastic lenses? 你的眼镜是用塑胶镜片的吗?
- One that makes lenses and eyeglasses. 光学仪器制造技师光学透镜和眼镜的制造者
- "Blind:Having a maximal visual acuity of the better eye, after correction by refractive lenses, of one-tenth normal vision or less (20/200 or less on the Snellen test)." 瞎的,失明的:通过折射矫正后,最好眼最大视力敏感度为正常视力的1/10或少于1/10的(斯奈伦测试20/200)或更低。
- The core parts of the system includes a holographic refraction lens, it looks like a normal CD intracrustal, its surface is divided into 5 or 6. 编制的洋枢部件包含一个全息不直射镜，它看起来像一个加厚的别致平盘，其暗不天被分成5或6份。
- Reaction rates o-bey a parabolic line law. 反应速率服从抛物线定律。
- Design and manufacture of a Cu compound X-ray refractive lens 铜材料X射线聚焦组合透镜的设计与制作
- One that sells lenses, eyeglasses, and other optical instruments. 眼镜商，光学仪器商出售光学仪器、眼镜或其它光学仪器的人
- The third kind of solar oven is parabolic cooker. 第三种太阳能烤箱是抛物线形的炊具。
- Parabolic dunes are the opposite of barchan dunes. 新月型沙丘则跟弧形沙丘相反。
- The third kind of solar oven is a parabolic cooker. 第三种太阳灶是抛物面式炊具。
- High-quality wide angle lenses are very expensive. 高品质的广角镜头非常昂贵。
- Parabolic pilot bit, reaming by side blade. 抛物线领眼;侧翼扩眼.
- compound refractive lenses 复合折射透镜
