Quasars are so far away that they constitute the best frame of reference for measuring Earth's rotation rate.

到目前为止，类星体是测量地球自转最好的参照系。

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European researchers h tried taking a wooden frame and measuring the numbers that appear over a given time.

欧洲的科学家曾经试图通过一个木制的架子来测算在一个特定时段内通过的昆虫数量。

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The Quality of lead frame plating layer directly affects the solderability of tantalum capacitor, so its measuring methods are very important.

引线框架电镀层的质量直接影响着钽电容器的可焊性，所以引线框架电镀层质量的测定方法至关重要。

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The outfit just introduced a pair of touch-friendly, Win 8-ready all-in-one desktops, the 23-inch Aspire 5600U and the 27-inch Aspire 7600U. As you can see in the press shots, the design here is fairly minimal, with an edge-to-edge display, a transparent panel at the bottom of the bezel and a thin frame measuring less than 1.4 inches thick.

ENGADGET: Acer announces Aspire 5600U and 7600U all-in-ones, coming this month for $1,000 and up