dropping device的意思|示意

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dropping device相关短语

1、 pantograph dropping device 受电弓降落装置

2、 anti-dropping device 防坠装置,防坠器

3、 anti-dropping device for cabin 司机室防坠装置

4、 automatic roller dropping device 自动落辊器

5、 automatic safety device against dropping 自动防掉安全设备