玩具弩
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| VIDEOS | |||
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 360P | Download |
| MP4 | N/A | 360P | Download |
| AUDIO | |||
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
| THUMBNAILS | |||
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JPEG | Origin Image | Download |
测自制弩动能
9kg拉力，设弹性形变均匀，10cm箭道。
fx约为90*0.1=9J
国家枪口动能1.8焦耳/平方厘米
设阻力0.5那么发射的弩箭面积为2.5平方厘米
9kg拉力，设弹性形变均匀，10cm箭道。
fx约为90*0.1=9J
国家枪口动能1.8焦耳/平方厘米
设阻力0.5那么发射的弩箭面积为2.5平方厘米
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