Space fragment 基本例句 空间碎片 This results in failure to allocate memory due to virtual address space fragmentation.这样会由于虚拟地址空间碎片而导致内存分配失败。 The issue of space debris is a big challenge to further expansion of space activities.空间碎片问题是人类进一步开展航天活动所面临的一个重大挑战。