...Flash Point °C (°F) (ASTM D-92)闪点° C（℉）（ASTM D - 92标准） Four Ball Wear Test四球磨损测试 (ASTM D-4172B: 40 kg, 75°C, 1200 rpm, 1 hour), Scar, mm（ASTM?- 4172B：40公斤，75℃，1200转，1小时），疤痕，毫米 .
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The tribological properties and the anti-wear of micron coppers inside greases were investigated by four-ball test.
通过四球试验，考察了软金属微米铜粉在润滑脂中的摩擦学行为和抗磨性。
Four-ball wear test indicated, the borate ester and ZDDP additive are antiwear synergistic, which is much useful in developing low-phosphorus engine oils.
四球长磨实验还表明，该硼酸酯添加剂与ZDDP类添加剂具有优秀的抗磨协同作用，这对研制低磷发动机油具有重要的意义。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验 ，考察了软金属微米铜粉在润滑脂中的摩擦学行为和抗磨性。
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