Download lxf here:
https://drive.google.com/file/d/14f4GULXMbFW6btHPNkt4EHfCON2Po9Pa/view?usp=sharing
Thursday 31 May 2018
Wednesday 30 May 2018
Tuesday 29 May 2018
Sunday 27 May 2018
火箭的简介
火箭(rocket)靠火箭发动机喷射工质(工作介质)产生的反作用力向前推进的飞行器。它自身携带全部推进剂,不依赖外界工质产生推力,可以在稠密大气层内,也可以在稠密大气层外飞行。火箭是实现航天飞行的运载工具。
Saturday 26 May 2018
Friday 25 May 2018
Thursday 24 May 2018
Tuesday 22 May 2018
Monday 21 May 2018
Saturday 19 May 2018
Friday 18 May 2018
Thursday 17 May 2018
Wednesday 16 May 2018
Tuesday 15 May 2018
Monday 14 May 2018
Sunday 13 May 2018
Subscribe to:
Posts (Atom)