The number 2 in x 2 is a superior character.

x2中的2是上角标.

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The results showed that these two methods are consistently by X 2 analysis.

经X2分析显示两种检验方法实验结果高度一致.

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A pusher propeller has been fitted at the rear of the X 2 to provide extra oomph.

与此同时,一台推进器也已经被装配在了X2的机身后方,以此来提供额外的推力.

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The X 2 an experimental helicopter beingan American company, at a test - flight centre in Florida.

位于佛罗里达飞行实验中心的西尔科斯基公司改进了X2这款实验型直升机.

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