Thus friction between two rough planks can be lessened if they are made smooth.

两块粗糙厚木板经过打磨后，它们之间的摩擦力会减小。

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Bilateral cooperation in the areas of energy and railway has made smooth progress and enjoys broad prospect.

两国在能源、铁路等领域的合作进展顺利，前景广阔。

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With the assistance of China, Tajikistan had made smooth progress in a number of its major infrastructure projects.

在中方帮助下，塔方一些重要基础设施项目建设进展顺利。

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The drink is made by combining different fruits into a smooth and tasty thick liquid.

VOA: special.2009.10.02

Warhol used a very smooth painting method so the artwork almost did not look hand-made.

VOA: special.2010.09.05

His form is made up of smooth lines and geometric forms.

VOA: special.2010.08.04

Unsurprisingly, the wheel made from a smooth and sturdy feeling plastic that's similar to what you'll find on the PS3 slim, so despite the size we'd place it in the "light" category, as far weight goes.

ENGADGET: Sony PlayStation Move Racing Wheel hands-on (video)

The top-selling stylish T Series Ultrabook made with an ultra-smooth brushed aluminum shell now comes with a touch display on the new T13 Ultrabook to allow consumers to experience Windows 8-based touch in a clamshell form factor.

ENGADGET: Sony's VAIO Duo 11 Windows 8 slider goes on sale this month, starts at $1,100

Winds had put Friday's flight in question, and those conditions made for a less-than-smooth ride for the six-person flight crew on NASA's carrier plane.

WSJ: A Shuttle Meets Its City