avalanche n. 1.雪崩,崩落,崩墜。 2.蜂擁而來(lái),紛至沓來(lái);雪崩式打擊。 3.【物理學(xué)】離子雪崩。 with the momentum of an avalanche 以排山倒海之勢(shì)。 an avalanche of mail 郵件的紛至沓來(lái)。 an avalanche of blows 劈頭蓋臉的打擊。 vi. 雪崩;雪崩似地落下。 vt. 大量涌進(jìn)(市場(chǎng)等)。
That is the reason that all over the countries have never stopped researching for mask jamming technology of radar . at present , the mask jamming source mainly comes from the thermal noise and zener avalanche noise of semiconductor devices . but the noise ’ s quality isn ’ t stabile because of the differences of semiconductor devices each other and the changes of exterior conditions 目前采用的遮蓋性干擾的噪聲源主要來(lái)自半導(dǎo)體器件本身的熱噪聲或齊納雪崩噪聲,但各器件本身的不一致性和外界條件變化等因素使噪聲輸出質(zhì)量不穩(wěn)定;同時(shí)由于此類(lèi)信號(hào)不能再生,不利于科學(xué)研究。