路中电压、电流的大小是随着时间按正弦规律而变化。直流电是：直流电路中电压、电流的大小是不随时间而变化的。

的更多意思 全部 natural childbirth natural fuel natural source natural collection natural dye natural law non-natural 查看全部意思» 惯用语 anyone's natural mother/father/mother or father phrase

，必须进行时间平均（积分）后才能得到正确的结果，绝不能用直流电那样用瞬时

A century ago Octavia Hill released the Countrywide Have confidence in to not rescue elegant houses but to save lots of“The great thing about natural spots for everyone for good”.

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Sadly, you must carry the required products along with you, since it's all but unachievable to discover natural substitutes.

This system has introduced them to in which They may be now, but it surely’s a risky redirected here 1. As a result of this, cheetahs can capture difficult prey, but are unable to protect them selves versus other African predators, that happen to be far more potent. Additionally, it consumes substantial quantities of energy.

/oʊˈeɪ.sɪs/ a place within a desert the place there is h2o and so crops and trees and in some cases a village or city

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Du fileår nå enten beskjed om at enheten er oppdatert eller at det finnes oppdatering tilgjengelig som du kan laste ned og installere.

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Many of the household furniture is crafted from click over here now natural products. 所有的家具均采用天然材料精心制作而成。

Pantherinae: involves the massive cats, characterised by an elastic hyoid equipment and specialized vocal folds that allow them to roar but reduce from this source continual purring.

Also "Leptailurus - This group of felines involves 3 species which might be genetically associated:" is just not fairly accurate. Leptailurus is actually a genus of only one cat - L. serval.