spacedevCOCA¹⁴⁰⁵⁵⁸ 基本例句 🌏太空开发公司；太空发展；近地小行星探勘者号 The contract period of performance is approximately24 months during which SpaceDev will develop a large, high stiffness, high expansion ratio deployable boom. 合同期限约24个月，空间开发公司将开发一个大型、高硬度、高扩充比的可部署吊杆。 www.etiri.com.cn