Liquids are used when tribo - assembly can be sealed from the outside environment.
当摩擦组装可以将外界环境隔绝时可以使用液体.
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The tribo - surface produces electrical pitting and appears local fusion and molten raindrop metallic grain splashed af.
载流条件下,摩擦表面发生电点蚀,并出现局部熔化和雨滴状金属颗粒.
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