cervit造句

例句与造句

1. The use of Cervit has largely been superseded by that of Zerodur and Sitall.
2. Sitall has a CTE of only 0?.5 x 10  " 7 / 癈 in the temperature range-60 to 60癈, placing it in a rather small group of transparent materials with low CTE such as Pyrex, Zerodur, Cervit and fused quartz.
3. In late-1967 the contract for the primary mirror blank was awarded to Owens-Illinois Inc ., USA and the 27.5 ton structure was cast from zero-expansion Cervit glass in April 1969 . The blank was shipped to Newcastle-upon-Tyne, England to be figured and polished by Sir Howard Grubb, Parsons and Co . Ltd . The final product has a diameter of 3.9m and a focal length of 12.7m.
4. It's difficult to find cervit in a sentence. 用cervit造句挺难的