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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。
- The State-of-Art and Application of Electric Rocket 电火箭的研究现状与应用分析
- The Emitter Life Research of Hollow Cathode in Electric Rocket 电火箭空心阴极发射体寿命研究
- It's quite clear that the electric car is technically feasible. 电动汽车明显在工艺技术上是可行的。
- Industry is a heavy user of electric power. 工业需耗费大量的电力。
- Never poke a finger or scissors into an electric socket. 千万不要把手指或剪刀插进电源插座。
- The machines are driven by electric motors. 这些机器都是由电动机驱动的。
- She buy an electric toaster this morning. 今天上午她买了一个烤面包片的电炉。
- It's a conduit enclosing insulated electric wires. 这是包电线的导管。
- A lot of electric lamps illumined the stage. 舞台由许多电灯照亮。
- I did the letter on my electric typewriter. 我是用电动打字机打这封信的。
- He bought an electric hair-drier for Mary. 他给玛丽买了一个电吹风。
- Please turn off the electric power. 请把电源关掉。
- He bought an electric hair-dryer for Mary. 他给玛丽买了一个电吹风。
- Magnetism produced by electric charge in motion. 电磁性由运动电荷引起的磁性
- The electric saw whined as it cut the wood. 电锯在锯木头时嘎嘎作响。
- This sewing machine is driven by an electric motor. 这台缝纫机是靠电动机启动的。
- Electric lights illumine our houses. 电灯照亮我们的房屋。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
