The Christina school district attracted similar controversy in 2007 when it expelled a seventh-grade girl who had used a utility knife to cut Windows out of a paper house for a class project.

2007年，克里斯汀娜学区同样惹来了争议。他们开除了一个7年级女生，该女生为完成课堂作业，用一把多用刀给一座纸房子开窗户。

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The utility model discloses a nuclear-grade high-pressure centrifugal fan used for a large-scale nuclear power plant.

本实用新型公开了一种用于大型核电站的核级高压离心风机。

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The utility model can be used as high-grade craftwork printing.

本实用新型可用作高档的工艺画。

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The CEO of a midsize investment-grade utility recently recounted to mehow in times past such backups for his commercial paper were readily, rapidly oversubscribed.

FORBES: Fact and Comment

The CEO of a midsize investment-grade utility recently recounted to me how in times past such backups for his commercial paper were readily, rapidly oversubscribed.

FORBES: Fact and Comment

Because the U.S. utility sector is so capital intensive, it must maintain investment-grade credit ratings.

FORBES: Energy Infrastructure: Critical to Economic Momentum