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Because of many reasons in the course of straightness error measuring, many original observed data deviate from actual value and are difficult to process. 由于在直線度誤差測量過程中的各種原因，導致許多觀測數(shù)據(jù)與實際值偏離或者很難進行處理。
When the estimated speed converges to the actual rotor speed, the rotor flux observed converges to its true value, which can be used in direct field orientation control(DFOC). 當電機轉(zhuǎn)速的估計值收斂于轉(zhuǎn)速的真實值時，觀測的轉(zhuǎn)子磁鏈也收斂于其真實值，可將其用于直接磁場定向控制中。
Comparing the results with the observed value of ionosonde measured in Wuhan, we find that this model can objectively describe the actual situation in the mid-latitude ionospheric E layer. 將模式的計算結(jié)果與武漢地區(qū)測高儀的觀測數(shù)據(jù)進行比較，結(jié)果證明模式能夠較為客觀地反映中緯電離層E層的實際形態(tài)。