火箭推进器 meaning in English
rocket-propelled device
Examples
- Solid rocket booster , srb
固态火箭推进器 - External srbs , orbital system engines , it ' s just like the shuttle you flew
外置固态火箭推进器，轨道系统引擎和你飞过的航天飞机一样 - Adding rocket propulsion could double this velocity ? and thus the impact momentum ? which would drive them to depths 75 percent greater in granite formations and nearly 1 , 000 percent greater in soft soil
加装火箭推进器可使速度（也包括冲击动量）提高一倍，使炸弹钻入花岗岩的深度增加75 % ，钻入软土壤的深度更可增加到10倍之多。