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What is English recitation?

What is English recitation? a reciting or repeating of something from memory, especially formally or publicly. oral response by a pupil or pupils to a teacher on a prepared lesson. a period of classroom instruction. an elocutionary delivery of a Read more…

What are the properties of quartz glass?

What are the properties of quartz glass? Quartz glass features good transmission behavior in ultra-violet, visible and infrared wavelengths. high temperature endurance. a low coefficient of thermal expansion. good thermal shock resistance. excellent electrical insulation. high chemical purity. Is quartz Read more…