But Mr.Obama's critics point out that the $100 million in cost cutting is miniscule - just a tiny fraction of one percent of the federal budget deficit.

VOA: standard.2009.04.20

OK, so tiny fraction, tiny fraction of alphas, tiny fraction of incident alphas, tiny fraction of incident alphas deflected through large angles.

这一小部分，极少的阿尔法粒子，极小部分的入射阿尔法粒子，小部分的入射阿尔法粒子,以大角度偏转。

麻省理工公开课 - 固态化学导论课程节选

A tiny fraction of the incident alpha particles were deflected through large angles.

极小部分的入射的阿尔法粒子,发生大角度的偏转。

麻省理工公开课 - 固态化学导论课程节选

When a brief pulse of electricity is sent to the read/write head it flips on a tiny electromagnet for a fraction of a second.

当一个简单的电脉冲被送到读写头,它会短时间内出现一个小的电磁。

哈佛公开课 - 计算机科学课程节选