Results: the linear amplification range of PCR and the best cycle number and template of RT-PCR were obtained.

结果：获取了P CR线性扩增范围，确定了RT - P CR的最佳循环次数和模板量。

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The two helical nanofibers usually change helical senses (helical reversals) at the coil position of the same cycle number.

这两根螺旋纤维经常在相同螺旋圈数的位置同时发生螺旋旋向的改变，即螺旋反转。

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The initial-crack, fracture impact cycle number and impact energy of these concrete beams with different fiber dosages are also tested.

测定了在不同纤维掺量下混凝土梁的初裂冲击次数、破坏冲击次数以及冲击能。

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All right, let's complete the cycle now, 3 the path number 3 here.

最后，来看路径。

麻省理工公开课 - 热力学与动力学课程节选

If you start with only one, you have two pieces of DNA, then you'll get 2 to the Nth fragments after N cycles because each cycle you're doubling the number.

如果你从仅仅一个DNA开始,你有两条DNA链,经过N次循环后,就得到二的N次方个DNA片段,因为每次循环都使其数量翻倍

耶鲁公开课 - 生物医学工程探索课程节选

And Microsoft is indeed widely expected to do far better in the next console cycle, for a number of reasons.

ECONOMIST: Microsoft

The evidence of this can be seen almost everywhere life-cycle of products, number of patents filed in the US Patent Office, amount of cell phone activity across national boundaries on and on and on.

FORBES: Can You Handle an Exponential Rate of Change?

Moving to a year round product release cycle should deliver Apple a number of benefits.

FORBES: Why Did Apple Disrupt Their Release Schedule With The 128 GB iPad?