What ergonomics do you want to study after the New Year recently, the information is still in English, and it needs to be translated all!

What Shangguan explained, you must do it!

Of course, ergonomics is definitely not the very embarrassing content you think, it's science, explain, I don't know if you believe it or not......

I saw that my head was too big in English, and English level 6 was not enough, so someone used translation software very shamelessly.

In addition, I would like to state that this book will not be a eunuch, so I would like to bow to all of you and take care of your New Year!

"Daming Qingshi" about the update is in the middle of the hand, please wait a moment,

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