long glass meaning in English
长型沙漏计(旧时计程器计时用
航海望远镜, 长性玻璃
缓硬玻璃
望远镜
Examples
- The composition and preparation of chinese qian long glass , which was manufactured in qian long dynasty ( 1736 - 1795a . d . ) , and imitated qian long glass were reviewed
着重评述了中国乾隆玻璃（乾隆王朝，公元1736 ~ 1795年）和仿乾隆玻璃的成分和制备。