大型固体火箭发动机 meaning in English

big solid

Critical techniques in development of large - size solid rocket motors
大型固体火箭发动机研制的关键技术
The study shows that the nine - component model and nine - component thrust vector stand can improve the precision of thrust vector measurement greatly
研究表明,九分力模型和九分力推力矢量试车台提高了推力矢量测量的精度,适合用于测量大型固体火箭发动机的推力矢量。
What ’ s more , the precision of thrust vector measurement is also calculated , depending upon the error analysis of nine - component model . a large - scale srm hot test is successfully done on the nine - component thrust vector stand . and the satisfactory results validate that the nine - component model is reasonable and the nine - component thrust vector stand design is feasible
在九分力推力矢量试车台上成功地进行了一次大型固体火箭发动机地面热试车,得到了满意的试验结果,验证了九分力模型的合理性和九分力推力矢量试车台设计的可行性。