飛達二號 的英文怎麼說
中文拼音 [fēidáèrháo]
飛達二號
英文
tdn23-5-
Low clouds kept shuttle discovery and its crew of seven from making their much - anticipated return to earth, and nasa vowed to bring the spacecraft down tuesday in florida, california or possibly even new mexico
低沉的雲層阻礙了「發現」號航天飛機和機上七名工作人員預期的返航,美國宇航局( nasa )誓言要在本周二讓這架航天飛機重返地球,著陸地點可能在佛羅里達州、加利福尼亞州甚至是新墨西哥州。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難,這是因為交流電機是多變量、強耦合的非線性系統,不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁電流分量與轉矩電流分量之間的解耦,達到對交流電機磁鏈與電流分別控制的目的,交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步,計算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。Suddenly, she saw a photograph of master flying through the air, immediately, she called out master s name and began to chase the photo. she raced from the third floor to the second, where finally she was able to catch the elusive photo
她見狀直呼師父名號,並追著師父法相由三樓到達二樓,隨即找到這張飛奔的法相,並緊抱在胸前,摸索著要下樓去。The rdpds processes the radar data from various primary and secondary radars to present the aircraft position and its related information, e. g. aircraft callsign, altitude, ground speed, aircraft category, etc. on the radar display
雷達數據處理及顯示系統可以處理來自不同的一次及二次雷達的數據,然後在屏幕上顯示航機的位置及其有關的資料,包括航機的代號、高度、速度、飛機種類等。A secondary surveillance radar provides, after processing of data transmitted by the aircraft, the range, bearing, altitude and identity ( callsign ) of an aircraft
經處理由飛機發出之數據后,二次監察雷達能提供航機的距離、方向、高度和識別(呼號) 。分享友人