Introduce the feature and application situation of the spring soft shaft used for the big reel of wire catcher on the condition of alternating torque.

介绍大工字轮收线机上一种弹性软输在交变扭矩下的特点和应用情况。

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The switch-hitting catcher sparkled in spring training with a .341 batting average, but the Orioles decided to have him start the year in Triple-A. The reasons are mostly financial: by pushing back Wieters' major league debut, the O's have ensured that their star catcher won't be eligible for salary arbitration until after 2012.

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Catcher Josh Thole opened a Twitter account in spring training 2011 figuring it would be a harmless promotional tool.

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He signed All-Star catcher Yadier Molina to a long-term deal last spring.

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