A brief introduction about test operation, the judgment of the pressure trace, the impact factors of the ballpressuretest 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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The four-ball machine test showed that the suspension possessed good extreme pressure performance and common antiwear performance; and had no effect on the friction coefficient by the MTM test.