검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B64G-001/14 |
미국특허분류(USC) | 244/158R ; 244/172 ; 244/2 |
출원번호 | US-0349840 (1989-05-09) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 28 인용 특허 : 0 |
A multi-use launch system comprises a plurality of different modules releasably securable together into a plurality of different possible launch configurations. The modules include an at least partially expendable, unmanned first stage unit which is capable of single-stage-to-orbit operations on its own carrying internal or external payloads, or as part of a multi-stage-to-orbit system for higher payload capacity launches. The first stage unit is demountably securable to other first stage units, unpowered cargo-carrying units, and/or manned space vehicle...
A multi-use launch system, comprising: a plurality of generally cylindrical modules selectably securable together in a variety of different possible launch configurations, the modules including: an at least partially expendable, unmanned first stage unit including primary propulsion means for boosting payloads up to a predetermined mass to a predetermined altitude and velocity, the primary propulsion means comprising means for selectively boosting the first stage unit alone from Earth into Earth orbit as a single-stage-to-orbit vehicle in one possible la...