The root canal systems were comparatively complex, but most of them were most of double three canals.

根管系统虽较为复杂，但主要是双根管和三根管型。

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Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the main harmonic components of the system were obtained.

通过对半控双三相12脉冲整流器的电流波形分析和傅立叶级数展开，得出系统的主要谐波成分。

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There were six double plays in the game: three by each team.

这场球赛中出现了6次双杀：每队各有3次。

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The objects found in Project Twenty-three could double the size of the research center's collection.

VOA: special.2010.04.07

Three plus five. I can take something to a power, double star, just take three to the fifth power.

+5，我也可以,求一个数的次方，例如求3的5次方。

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and two double o three (2003), two six fifty (2650).

03 （2003）和650（2650）。

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Using nineteenth-century birth rates, he projected that the number of people on the planet would double three times every century.

NEWYORKER: The Case Against Kids

Fiji's world number four Vijay Singh, the event's highest-ranked player, finished level after a 73 that included an eagle, three straight birdies, a triple bogey, a double and three other bogeys.

BBC: SPORT | Golf | Wetterich seals Byron Nelson win

This is double the three year statute of limitation previously mandated by federal law.

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