Rough surface is easy to generate V shape of stress concentration, which reduce fracture strength.

粗糙表面的晶粒间易产生V形口，导致应力集中，降低了膜的断裂强度。

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In view of the reasons of surface crack and inclined fracture during drawing process and how to reduce fracture rate, some Suggestions are put forward.

针对拉拔过程中出现表面裂纹、发生斜杈状断裂的原因以及怎样减少断丝率，提出了一些建议。

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A doctor can reduce a fracture or dislocation.

医生能使骨折或脱臼复原。

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However, it was his nephew, Sir Robert Jones - Evan's great-great-grandson - who would demonstrate the true potential of the Thomas splint - using it on the Western Front, to reduce fracture deaths from 80% in 1916, to just 8% by the end of World War I.

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