单词burning glass
na.: 凸透镜
网络: 取火镜；聚光玻璃；燃烧的玻璃
凸透镜,火镜
He focused the sun"s ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上聚成焦点。
the sun"s rays on dry wood with a burning-glass, it will start burning.
如果你用取火镜使太阳光线聚焦在干木头上，木头就会燃烧起来。
He focused the sun"s rays on the paper with a burning glass.
他用取火镜使太阳光聚集在纸上。
Development of Burning Glass- Ceramics by Using Coal Solid Trash
用煤炭固体废物烧制微晶玻璃的研究进展