光激硅可控开关 light activated silicon controlled switch 石英玻璃，硅玻璃，二氧化硅玻璃 silica glass 光激硅可控整流器，光触发开关（元件） LASCR（light activated silicon controlled rectifier) ..
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作为玻璃的主要成分，二氧化硅早在公元前5000年就被使用。
As the principal component in glass, silicon dioxide was used as early as 5000 BC.
它很令人费解，为何他们的辣椒需要包括一个防结块的物质，如二氧化硅(也称为砂，或玻璃粉末)。
It's puzzling to try to understand why their chili would need to include an anti-caking agent such as silicon dioxide (also known as sand, or glass powder).
它的五颜六色效果是由于硅藻的像玻璃外壳包围着机体的二氧化硅细胞壁。
The colorful effect is due to the diatom's silica cell wall, which encases the organism like a glassy shell.
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