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- Exact measurement of micro-thrust is one of pivotal technologies of studying electric rocket. 微小推力准确测量是研究电火箭的关键技术之一。
- Abstract: Introduces a method to eliminate influence of power supply and air-feed system on exact measurement of micro-thrust of electric rocket in the gravity field, so micro-thrust can be measured accuratelg and automatically. 文摘:介绍了在重力场中，消除电火箭自重及其供电供气系统对微小推力测量影响的方法，从而实现电火箭微小推力自动准确的测量。
- Then, by choosing the control weighted matrix R reasonably, the constrained optimization problem as formation keeping with electric rocket propellant can be transformed into the unconstrained optimization to be solved. 然后通过合理的选择控制加权矩阵R,用无约束的线性二次型优化方法解决了电推力火箭有控制约束的优化问题。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- The State-of-Art and Application of Electric Rocket 电火箭的研究现状与应用分析
- Be he a civil engineer or an electrical engineer? 他是土木工程师还是电气工程师？
- They planned to send a rocket to the moon. 他们计划向月球发射火箭。
- There are some electrical apparatus in the room. 房间里有些电器。
- There is a fault in the electrical system. 电路系统出了故障。
- He is an electrical technician by profession. 他的职业是电工技师。
- Imagine a rocket that can travel at the rate of light! 想象一下能以光的速度飞行的火箭。
- All this electrical wiring will take a day to set up. 所有这些电线架线要花一天时间安装好。
- A rocket manned by trained astronauts will launch soon. 载有受过训练的宇航员的火箭马上就要发射了。
- Scientists have computed the probable course of the rocket. 科学家利用计算机计算了火箭可能运行的轨道。
- The rocket did one circuit of the earth and returned to base. 火箭绕地球运行一周后返回基地。
- The Emitter Life Research of Hollow Cathode in Electric Rocket 电火箭空心阴极发射体寿命研究
- An aircraft takeoff aided by an auxiliary jet or rocket. 助飞用喷气机或火箭帮助航空器起飞
- Now electrical appliances have entered into ordinary families. 现在家用电器已经步入普通家庭。
- A rocket can bring back information which we could never get in any other way. 火箭能够带回我们用其他方法得不到的资料。
- Don't meddle with the electrical wiring: you're not an electrician. 别瞎动电线线路，你又不是电工。
