At the Open University of the United Kingdom, in addition to theoretical studies aimed at understanding the formation of smaller bodies in the solar system, a number of experimental programmes are also under way, among them the development of a penetrometry rig to simulate a high-mass, low-speed impact of a penetrometer fixed to a landing spacecraft
? 谢 了 ! 你? 帮 忙 拿? 这 些 吧 !- 好的 !??? 题 , 林 克MultiUn MultiUn