After this period of getting along, the people in their military supervision can be regarded as having a certain understanding of Qi Yao, and they all believe that Qi Yao is a strange woman, as long as Qi Yao says that there is a way, it is almost certain.

So at this moment, hearing Qi Yao's words, this ceremony is so exciting.

Qi Yao said, "Before, we used gears to pull the bow and arrows, which naturally required higher strings, but now we have a different method and don't use gears." ”

Don't use gears, just veto this design, and you don't have to worry about this problem anymore.

But Lizheng was stunned, "Then the whole design can't be used anymore!" ”

It's not easy to design, and the things designed by Qi Yao are interlocking, and they are also ......

"Yipin Princess, God of War's Husband and Wife Are Busy" Chapter 552 It should be used with a spring is hitting in the hand, please wait a moment,

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