单词	冷缘冷水花
释义	冷缘冷水花Pilea cavaleriei Levl.
随便看	noise equivalent reflectivity difference noise equivalent resistance noise equivalent temperature difference noise equivalent voltage noise event noise excess factor noise exposure noise exposure computer integrator noise exposure flux noise exposure level noise exposure meter noise exposure rating noise factor noise factor{=nf} noise factor; noise figure noise feedback coding noise feedback coding (nfc) noise field noise field intensity noise field intensity measuring equipment noise figure noise figure indicator noise figure measuring set for microwave equipment noise figure meter noise figure (nf)