There is an object relational mapper out there that is a hidden gem.

那里有一个对象关系映射程序，它是一块隐藏的宝石。

youdao

Thus, I write a new Mapper class.

因此，我编写了一个新的 Mapper 类。

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Then, choose the persistence mapper component.

然后，选择持久性映射程序组件。

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The Moon Mineralogy Mapper could only examine lunar soil to a depth of a few millimeters.

VOA: special.2009.12.30

The Moon Mineralogy Mapper can only observe lunar soil to a depth of a few millimeters.

VOA: special.2009.09.30

The mapper is a spectrometer, a device that measures reflected light wavelengths.

VOA: special.2009.09.30

The first in the series, a gravity mapper called Goce, was launched in March 2009.

BBC: Esa's Cryosat ice mission given launch date

Craig Venter, the brash gene-mapper, and James Watson, who discovered DNA's structure, have gotten to look straight at their entire DNA code.

FORBES: Luxury Genes

Celera genomics began life as the swashbuckling mapper of the human genome, but it never could find the profit treasure buried in that map.

FORBES: The Suggestive Gene