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- A Study on Improving Chemieal Dur Ability?of Dense Flint Glass by Ion Exchange 离子交换提高重火石玻璃表面化学稳定性的研究
- double extra dense flint 双超重火石玻璃
- extra dense flint 特重火石玻璃
- dense flint glass 重火石玻璃
- The lens telescope, or refractor, was vastly improved when it became possible to manufacture high-quality lenses made from flint glass. 透镜望远镜，或称折射望远镜，在人们能够制造出高质量的火石玻璃透镜以后得到了很大的改进。
- The dispersion relation of dense flint ZF6 prism was measured by using the method of angle of minimum deviation. And the dispersion equations were fitted with the software of Microcal Origin. 采用最小偏向角法对重火石玻璃棱镜的色散关系进行测量,并利用Microcal Origin软件进行非线性拟合得到色散方程。
- In this paper, the authors studied the cause of coloration of flint glass in different melting processes and analized the Pt, Rh content of the melt. Then, by adding rhodium oxide to the glass, the minimum content of Pt, Rh for coloration was studied. 本文研究了不同的二次熔炼工艺制度下火石光学玻璃的着色,分析了玻璃中的铂铑含量,?K用加入不同量氧化铑的方法研究了玻璃着色的最低铂铑含量。
- An achromatic lens system may consists of several cemented or separated groups of orown and flint glasses. 一个消色差的透镜系统可由若干个互相贴合的或互相分离的、由冕玻璃和火石玻璃组成的组元组成。
- Flint glass burette with ptfe stopcock 聚四氟乙烯旋塞滴管
- He thinks of new york as a den of iniquity. 他认为纽约是个藏污纳垢之处。
- Experience for Production of Flint Glass 高白料生产的几点体会
- He has made his house a den of thieves. 他把自己的家变成了一个贼窝。
- The bears den up together during the winter. 冬天熊一起在洞穴里冬眠。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- He thought of New York as a den of iniquity. 他认为纽约是个藏污纳垢之处。
- The liner ran down a fishing-boat during the dense fog. 班轮在浓雾中撞沉了一只渔船。
- My extra earnings came in very handy. 我的额外收入可备我不时之需。
- The bar in the slum is a den of iniquity. 这个贫民窟里的小酒吧是一个充满罪恶的场所。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- This extra strong glue should do the job nicely. 这种超强度胶应该管用。
