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- Exact measurement of micro-thrust is one of pivotal technologies of studying electric rocket. 微小推力準確測量是研究電火箭的關鍵技術之一。
- 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:介紹了在重力場中，消除電火箭自重及其供電供氣系統對微小推力測量影響的方法，從而實現電火箭微小推力自動準確的測量。
- 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. 然後通過合理的選擇控制加權矩陣R,用無約束的線性二次型優化方法解決了電推力火箭有控制約束的優化問題。
- Our pilotless rocket enters the track of the earth. 我們把一個無人駕駛的火箭送入了地球的軌道里。
- The State-of-Art and Application of Electric Rocket 電火箭的研究現狀與應用分析
- Be he a civil engineer or an electrical engineer? 他是土木工程師還是電氣工程師？
- They planned to send a rocket to the moon. 他們計劃向月球發射火箭。
- There are some electrical apparatus in the room. 房間里有些電器。
- There is a fault in the electrical system. 電路系統出了故障。
- He is an electrical technician by profession. 他的職業是電工技師。
- Imagine a rocket that can travel at the rate of light! 想象一下能以光的速度飛行的火箭。
- All this electrical wiring will take a day to set up. 所有這些電線架線要花一天時間安裝好。
- A rocket manned by trained astronauts will launch soon. 載有受過訓練的宇航員的火箭馬上就要發射了。
- Scientists have computed the probable course of the rocket. 科學家利用計算機計算了火箭可能運行的軌道。
- The rocket did one circuit of the earth and returned to base. 火箭繞地球運行一周后返回基地。
- The Emitter Life Research of Hollow Cathode in Electric Rocket 電火箭空心陰極發射體壽命研究
- An aircraft takeoff aided by an auxiliary jet or rocket. 助飛用噴氣機或火箭幫助航空器起飛
- Now electrical appliances have entered into ordinary families. 現在家用電器已經步入普通家庭。
- A rocket can bring back information which we could never get in any other way. 火箭能夠帶回我們用其他方法得不到的資料。
- Don't meddle with the electrical wiring: you're not an electrician. 別瞎動電線線路，你又不是電工。
