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Member for
3 years 1 monthAge: 12
Level: 6
Language: Chinese
(zh)
ID: 771571
01/03/2021
Country code: MY
Country: Malaysia
Main content: 机电系统的基本元件 (1) (1296129)
4.3.4 确认机电系统的基本元件,包括
a) 电动机和齿轮
b) 电动机、滑轮和传动带
c) 电动机、链轮和链条
Other contents: RBT
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