leading or lagging 中文意思是什麼

leading or lagging 解釋
超前或滯后
  • leading : n 1 鉛制覆蓋物。2 空鉛，鉛條，鉛皮。n 1 領導，指導。2 引導。adj 1 指導的，領導的。 a leading cadr...
  • or : or2,〈古、詩〉在…之前，比…更早〈普通用or ever, or e'er〉。n. 【徽章】黑金色，黑色。
  • lagging : n. 落後，遲延。adj. 慢的，落後的。adv. -ly n. 1. （鍋爐等的）外套，防護套，罩殼。2. 加套；橫板；護壁板。3. 【建築】套板；橫檔板；支拱板條。
  1. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  2. The laboratory can provide calibration for 50 or 60 hz single - phase power factor meters with measuring range from zero to unity, leading or lagging

    功率因數表本所可為頻率為50或60hz而測量量程由零至一超前或滯后的單相功率因數表提供校正服務。
  3. The laboratory offers calibration for single - phase wattmeters at fixed frequencies of 50 hz, 60 hz or 400 hz, and in the power factor range of unity to 0. 5 leading or lagging

    功率表本所為固定頻率50hz ， 60hz或400hz及功率因數為1至0 . 5超前或滯后的單相功率表提供校正服務。
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