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- 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。
- 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。
- 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。
- Flint glass burette with ptfe stopcock 聚四氟乙烯旋塞滴管
- Experience for Production of Flint Glass 高白料生产的几点体会
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- A very nice set of glasses came under the hammer yesterday. 昨天拍卖了一套很精致的玻璃杯。
- I'm very near-sighted without my glasses on. 我要是不戴眼镜十分近视。
- Your cigarette-lighter needs a new flint. 你的打火机需换新电石了。
- He peered at me over the top of his glasses. 他从眼睛的上沿注视着我。
- She peer at me over the top of her glasses. 她从眼镜上方盯着我看。
- He was an old man who wore thick glasses. 他是个戴着厚厚眼镜的老头。
- Mr.Green dressed up as a policeman in dark glasses. 格林先生伪装成一名戴墨镜的警察。
- When I drink tea, my glasses mist over. 我喝茶时眼镜蒙上了一层水汽。
- The optician said I needed new glasses. 验光师说我需要配副新眼镜。
- At that time they have learn to strike fire from flint. 那时他们已学会了用燧石打火。
- I can read well enough without glasses. 我不戴眼镜也能看得很清楚。
- I can't read small print without my glasses. 我不戴眼镜看不清小字体。
- Mind where you put those glasses! 把那些杯子放在哪儿,要看著点。