This machine can according to the requirements of the density of ball pressure adjustment pressure, production is flexible.

本机可以根据压球密度的要求调整压力，生产机动灵活。

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A brief introduction about test operation, the judgment of the pressure trace, the impact factors of the ball pressure test in the medical devices area…

对医疗器械产品中球压试验的操作、压痕判定、影响试验的因素进行简要论述。

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On a few metal hardness instruments, major equipment is on a different angle conical diamond indenter or different diameter ball pressure on the first loading of the metal to Surface make indentation.

介绍几个关于金属材料硬度仪器的研制，仪器主要是依靠不同角度的角锥金刚石压头或者不同直径的钢球压头依靠加卸载力来对金属表面做出压痕。

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Some teams are more possession oriented, meaning a little bit more low pressure on the ball and more skillful players.

VOA: special.2010.06.02

"In our studies, ball pressure made a big difference, " Dr. Plant said.

WSJ: Soccer 'Header' Impact Likened to Hard Punch

However, Hansson lost the ball under pressure from Villa, who calmly scored with an angled shot from just inside the area.

CNN: Last-gasp Villa gives Spain narrow win

John Fleck's replacement Aaron Niguez sent over a teasing cross from the left and Wright did well to clear the ball under pressure.

BBC: Rangers 3-1 Kilmarnock