Results Radiotherapy can relieve pain of bone metastases. Compared conventional fraction with hypofraction, no significant difference was found (P>0.05).

结果放疗起到了明显的止痛作用，常规分割放疗组与低分割放疗组止痛效果大致相同，无统计学意义（P＞0．05）。

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The study found that growing meat in the lab rather than slaughtering animals would generate only a tiny fraction of the greenhouse gas emissions associated with conventional livestock production.

研究表明，在实验室培养的肉与那些传统方式宰杀动物相比，会产生更少的温室气体。

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All this, without spilling American blood and for a small fraction of the cost of conventional battle.

所有这一切，都无需抛洒美国人的热血，也只需消耗常规战经费的一小部分。

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As a result, field trials with these plants are 10 to 20 times as expensive as experiments with virtually identical plants modified with less precise, conventional techniques, so only a minuscule fraction of potentially important plants developed in university and corporate laboratories ever make it into field trials.

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It was "eye floaters, " microscopic grey globs that cast shadows on the retina, that inspired California Institute of Technology professor Changhuei Yang to create a lensless microscope that aims to change the way scientists go about diagnosing diseases and developing new drugs--for a fraction of the cost of a conventional microscope.

FORBES: Magazine Article