单词：flint glass
of a silicate of lead and potassium. It is used for tableware, and for
optical instruments, as prisms, its density giving a high degree of
dispersive power; -- so called, because formerly the silica was
obtained from pulverized flints. Called also crystal glass. Cf. Glass.
- optical flint火石光学玻璃...
单词：flint glass 相关文章
[00:03.92]Well, I'm pretty backed up on requests. 呃，我已经答应别人了 [00:05.20]Plus, you're always mean to me. 而且，你对我一向不好 [00:06.52]It'll be just one time... 就一次 [00:08.52]...for my special angel's special day. 为
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[00:01.02]Still nothing, nothing in the bottom of the third inning. 还是没有，第三局一开始还是什么都没有 [00:13.34]Everyone. 大家 [00:17.42]I want to apologize. 我想认错 [00:19.42]Especially to you, Sam. 特别是你，Sam [00
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