The backing comprises a first surface and a second surface.

所述背衬包括第一表面和第二表面。

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The injection nozzle assembly includes a cap member having a first surface that extends to a second surface.

喷嘴组件包括具有延伸到第二表面的第一表面的帽状部件。

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The first layer comprises a transition metal, a first surface and a second surface which is touched with the basal body.

所述第一层包括过渡金属且包括第一表面和与所述基体 接触的第二表面。

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Drop a second device on Surface and the system will offer up point-by-point comparisons of the two phones.

FORBES: Surface Surfaces At AT&T

In theory, to unscramble the signal completely you need two things: good computers and, not so easy, a second infinitely large surface, this time covered with radio telescopes.

ECONOMIST: Pulsars: In a wink | The

Further alterations were later made, including changes to the mill's second waterwheel to drive a surface water pump and haul trucks from a neighbouring gypsum mine.

BBC: Cumbria's Acorn Bank Mill grinds first flour for 70 years