|
發(fā)布時(shí)間: 2021-7-21 11:49
正文摘要:新手:施加力,一次選四個(gè)面,,大小300N,,是每個(gè)面300?,,還是四個(gè)面一共受力300N ! t& |& k. V& F: U3 G2 L3 [' P |
小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
GMT+8, 2025-1-10 11:20 , Processed in 0.054304 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.