The exact contact with practice has practical impact on me.
同实践的密切接触对我有实际的影响.
The exact contact with practice has practical impact on me.
同实践的密切接触对我有实际的影响。
During impact test, no vibration and bird pecking phenomenon at contact point.
冲击试验时，接点不应产生振动和鸟啄现象。
During impact test, no vibration and bird pecking phenomenon at contact point.
冲击试验时，接点不应产生振动和鸟啄现象。
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