Control group was 49 patients undergone reduction with single nail-grooved tail steel plate and posterolateral fusion.

行单钉-沟槽柱翼钢板内固定、后外侧植骨融合术治疗的49例为对照组。

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For flat products like plate and strip, plain rolls are used, and grooved rolls are used for the rolling of sections of various shapes.

根据轧制轧材的温度，轧制可分为热轧和冷轧；因而轧制产品也可分为热轧产品和冷轧产品。

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He stole home nineteen times in his ten-year major-league career (1947-56), and the threat that he might suddenly break for the plate unnerved pitchers, some of whom balked or accidentally grooved the ball to the batter.

NEWYORKER: Artful Dodgers