Applied in the condition of heavy load, medium or long distance, top speed movement, bad environment etc.
可应用于负载较重,中长距离,高速运动,环境恶劣等场合。
Applied in the condition of heavy load, medium or long distance, need closed, top speed movement, bad environment etc.
可应用于负载较重,中长距离,需封闭的,高速运动,环境恶劣等场合。
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