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A natural sounding headphone should have a gentle hump in the bass (about 3 or 4 dB) between 40Hz and 500Hz. (This compensates for the fact that headphones don't give you the physical punch that the sound from a speaker has; so a slight compensation of in
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这大致是说,耳机频响曲线在低频40-500赫兹间有个小的隆起是正常的,因为耳机不能象喇叭那样给人真实的低频冲击力,所以在这个低频段加强一些,声音反而自然逼真些.另外,为避免太刺激耳朵,耳机在1000赫兹起到耳朵听力的极限20000赫兹间应该有衰减,到2万赫兹处比平均输出低8-10分贝是正常现象. |
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A natural three-beat gait of a horse, faster than a canter, in which all four feet are off the ground at the same time during each stride.
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疾驰，飞奔马的自然的三步跑法，比慢跑快，在每次迈步时马的四蹄都同时离开地面 |
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A natural, gentle yet effective exfolian the enzyme from Walnut provides the skin with vitamin C, a natural astrigent.
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天然而温和磨砂成份，能有效去除死皮；核桃皮中的酵素含丰富维他命C,有紧肤功效。 |
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A naturalist has discovered that the bee scout delivers her report through a complicated dance in the hive, in which she tells the other workers not only how far away the food is, but also what direction to fly in relation to the Sun.
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博物学家发现这只蜂探在蜂房里跳了一段极为复杂的舞，通过这段舞她不但告诉其它工蜂食物有多远，而且报告了以太阳为参照的飞行路线。 |
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A naturally inspired skincare line formulated with Calendula extracts topurify and hydratesensitive, rough skin.
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净化和补水，并且是对敏感、粗糙的皮肤。 |
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A naturally occurring or artificially produced radioactive element.
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放射性元素自然产生或人为制造的放射性元素 |
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A naval officer fell overboard. He was rescued by a deck hand. The officer asked how he could reward him.
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一名海军军官从甲板上掉入海中。他被一名甲板水手救起。这位军官问如何都能酬谢他。 |
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A nd now her father was boosting her up to the platformIn sight of everyone she knewIn Westfield, and, before she knewit, she was standing besideMr. Lincoln.
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现在,在她所认识的卫斯特菲尔德的人们的注视下,她父亲把她抱上月台。在她明白过来之前,她已站在林肯先生身旁。 |
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A near friend is better than a far-dwelling kinsman.
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远亲不如近友. |
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A near relative; a near and dear friend.
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近亲；关系密切的好朋友 |
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A nearby forest burst into flames from the barrage and huge plumes of gray smoke rose into the air.
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附近的一片森林在火焰中，灰色的烟象浓厚的羽毛一样直升空中。 |
