小徐 zencart
fotb (2023-10-17 23:17:59)
布袋弹重量40g,初速70m/s,动能98焦耳。布袋弹内是铅砂,如果布袋破裂,铅砂会因为惯性继续前进,造成类似达姆弹的伤口空腔;1/4\'\'钢珠重量1.04g,假设也达到70m/s的初速,动能是2.5焦耳,事实上普通压缩气体发射的钢珠很难达到这个速度,一般在50m/s以下,也就是动能在1.3焦耳以下;如果用弹弓发射8mm钢珠,初速70m/s的话,动能是5.12焦耳。我查了以下3M 1621AF防护眼罩的标准,能防御动能6.192焦耳的6mm钢制弹丸的冲击
blog link
Yorkiepoo My Best Friend Magnet
Yorkipoo Portrait Oval Metal Keychain
Yorkshire Terrier Bonet Coffee Mug
Yorkshire Terrier Bonet Framed Keychain
Yorkshire Terrier Figurine With Money Tin Box
Yorkshire Terrier I Heart Ceramic Travel Mug
Yorkshire Terrier I Heart Round Glass Ornament
Yorkshire Terrier Live Forever All Over Adult T-Shirt
Yorkshire Terrier Live Forever All Over Adult Tank Top
Yorkshire Terrier Portait Plastic Pint Cup With Straw
Yorkshire Terrier Portrait Oval Metal Keychain
Yorkshire Terrier Portrait Oval Metal Keychain
Yorkshire Terrier Profile Circle Plastic Pint Cup With Straw
Yorkshire Terrier Puppies Medium Acrylic Journal
Yorkshire Terrier Puppies Small Acrylic Journal
Yorkshire Terrier Red Adult Ugly Christmas Sweater Crew Neck Sweatshirt
book link
- 版权所有 © 2024 小徐 zencart视频教程. Powered by zencart 模板
如果有任何关于网站的意见,可以QQ联系或者发邮箱。