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1·The total weight of a dry glass beaker and a magnetic stirrer was determined before the reagents were mixed.

反应物在混合之前应先确定干燥的玻璃烧杯和磁力搅棒的总重量。

2·This is a glass beaker after about half a million rads of radiation. The glass started to burn and crack, while the microbes sitting in the bottom just got happier and happier.

这是玻璃烧杯在约50万拉德辐射下的情形，玻璃开始燃烧，爆裂，而位于烧杯底部的微生物仍然是不亦乐乎。

3·So scientists at the national meeting of the American Chemical Society in Anaheim raised a glass. (Or a beaker.)

2011是个国际化学年，科学家们在阿约翰召开的美国化学学会会议上举起了一杯血腥玛丽。