ratio n. (pl. ratios) 1.比,比率,比值;比例;系數(shù)。 2.【經(jīng)濟(jì)學(xué)】復(fù)本位制中金銀的法定比價。 the ratio 3:2 (讀作 the ratio of three to two )3對2之比。 arithmetical ratio 公差,算術(shù)比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 電流比,電流變換系數(shù)。 nutritive ratio 營養(yǎng)率。 vt. 1.用比例方式表達(dá);求出…的比值;使…成比例。 2.將(相片)按比例放大或縮小。
The operation of the proposed system is thoroughly analyzed and how to control modulation ratio meets each pulse magnetic reset is deduced 對如何通過控制調(diào)制比使高頻變壓器能滿足逐個脈沖磁復(fù)位進(jìn)行了數(shù)學(xué)推導(dǎo)。
Via theoretical analyzing , we can find that the step reference waveform modulation strategy is an ideal one when frequency modulation ratio is not very high 通過理論分析,可以看出階梯波調(diào)制pwm的確是在頻率調(diào)制比不高時較好的調(diào)制方式。
The magnetic reset by each pulse is proposed in this paper . that is how to control modulation ratio and let the increase of magnetic flux with each high frequency pulse reset to zero . so it will avoid magnetic flux saturation 本文采用逐個脈沖磁復(fù)位技術(shù),就是在每個高頻脈沖之后及時采取措施,使每一個高頻脈沖引起的磁通增加都回復(fù)到零,從而避免磁芯磁通飽和。