The appropriative test menu for "power frequency variation" is normally built in domestic relay protection test instruments, but it should be calculated and set beforehand for imported instruments.

国产继电保护试验仪一般都有针对工频变化量的专用测试菜单，而进口仪器则需预先计算和设置。

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Taco Bell Grille was an experimental restaurant the company opened in Garden Grove, Calif. to test higher-end menu items, such as smoothies.

FORBES: Marketing

Taco Bell Grille was an experimental restaurant the company opened in Garden Grove, California to test higher-end menu items, such as smoothies.

FORBES: Companies & Strategies

At Test Kitchen, nightly chef and menu changes and exciting chef collaborations offer a sneak peek at the dishes that may be the next hottest thing in gourmet cuisine.

BBC: LA��s exciting culinary test ground