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- The design of turbulator air preheater with finned tube and that with optic tube as well as its application in petrochemical works were recommended. 介绍了扰流子翅片管空气预热器及光管扰流子空气预热器的设计以及在石油化工厂中的应用情况。
- Nothing can be done if the optical tube is not perpendicular to the declination axis or if the R.A. and Dec axes are not perpendicular, because these problems are next to impossible to fix. 但没有避光学镜筒没有垂直于赤纬轴，或是赤纬轴与赤经轴没有互相垂直更糟的情况，因为这需问题会导致根本无法固定住要观测的目标。
- self-standardized micro-flat optical tube 自准测微平光管
- Keywords Optic tube;Finned tube;Turbulator;Air preheater;Design;Application; 光管;翅片管;扰流子;空气预热器;设计;应用;
- His optic nerve was hurt in an accident. 他的视神经在一次事故中受到损伤。
- Microscopes and telescopes are optical instruments. 望远镜和显微镜是光学仪器。
- The optic theory originated with Einstein. 光学理论是爱因斯坦首创的。
- A mirage is an optical illusion. 海市蜃楼是一种视错觉。
- A system of optical components that magnifies. 能起放大作用的一组光学元件
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- The optical system of the eye stimulate cell of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- THE ERROR ANALYSIS IN MEASURING GHE FOCAL LENGTH OF THE LENS BY PARALLEL OPTICAL TUBE 平行光管测透镜焦距中的误差分析
- I thought I saw a ghost but it was just an optical illusion. 我以为我看见鬼了，其实只是一种幻觉。
- They concentrated on better definition of the optical image. 他们致力于提高该光学影像的鲜明度。
- The optical system of the eye stimulates cells of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- Light stimulates the optic nerve. 光刺激视神经。
- 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
- A light-sensitive unit used with an optical arrangement for scanning images. 与光学装置一起用来扫描图象的一种光敏装置。
- An optical effect proper to fluids. 液体所固有的光学效果
- optic tube 显微镜(抽)筒
