How is the spiral rifling in the barrel made? Originally there are four ways a video to take you t

Interesting about black technology you want to see all here
Hello everyone
Welcome to Fun Technology]
Go to the black technology again
Cold knowledge you don't know
Share interesting black technology every day
If you like it don't forget to order a subscription
Subscription link: bit.ly/3nxqNbV
Popular science knowledge: • 科普知识
Interesting Technology: • 趣说科技
You must not know: • 你一定不知道
Interesting Science and Technology# Explanation# Science# Science and Technology# Science and Technology Interesting News

[@woopiter7259]

19:55 水上飞摩托，我觉得前轮子应该附加一个前端上翘滑板装置，入水后滑板下降低于轮子；动力后轮不装，在水中旋转起到划桨的推进作用，这样的实验可以试试，看能跑多远。

[@user-fg8zh3nz4s]

你什么时候去试？

[@GearTiger007]

叉车那个是伪命题 根本不需要这种东西 而且叉车的配重会导致卡车的各种高速行驶的问题 另外转向与悬挂系统也不一样 只能说 如果这么改 两者功能性能都劣化

[@user-xq8vh3xm3u]

锯到高压线，那就变成剪高压电喽。