英文了得的人請進!

2007-04-29 10:59 pm
槓杆原理的英文 is?
更新1:

一,二,三級槓杆原理的英文 is?

回答 (2)

2007-04-29 11:30 pm
✔ 最佳答案
First-class levers
Second-class levers
Third-class levers
2007-04-29 11:04 pm
Lever principle


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