There are pre-defined rules which are used to validate model and databases.

预定义规则可用于验证模型和数据库。

youdao

Further values include ADD and DELETE, which are used for miscellaneous operations.

其他的值包括ADD和DELETE，这些可以用于各种操作。

youdao

The minerals are so-called rare earths, which are used in products like wind turbines and hybrid cars.

这些矿产是所谓的稀土资源，被广泛用于像风力涡轮机和混合动力汽车这样的产品。

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"People are used to bakery style macaroons which is coconut based.

VOA: special.2010.04.12

So, for example, just talking about hydrogen cyanide or the cyanide anion, these are both molecules which are used in organic synthesis, so particularly the cyanide anion and salts of the cyanide anion.

那么，比如，就拿氰化氢,或者氰离子来说，它们都是用于有机合成的分子，特别是氰离子和氰离子的盐。

麻省理工公开课 - 化学原理课程节选

I always want to--modern football helmets which are monstrous-- I'm so old we used to play with leather ones without a face mask.

现代美式橄榄球的面具就跟怪兽一样的,我老了,我们小时候打球都是皮质头盔而且没有面具的

耶鲁公开课 - 古希腊历史简介课程节选

This translates into higher sales of pickup trucks which are used extensively by construction companies.

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Mother-of-pearl is actually stronger than high tech ceramics, which are used in biomedical implants.

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The molecular family it concentrates on is the terpenes, which are used as fragrances and flavours.

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