衰减的英文：
to weaken
to attenuate

参考例句：
  • The nonlinear wave shape degenerates to a sinusoidal wave
    非线性波形衰减成正弦波。
  • The tide was near the turn and already the day was on the wane(James Joyce)
    潮水即将退去，白昼已在衰减(詹姆斯·乔伊丝)
  • In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration
    在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大。
  • A specimen which is much thicker than the penetration depth decays exponentially
    一个比穿深透度厚得多的样品，按指数律衰减。
  • For a target of any thinkness, the undeflected flux diminishes exponentially with thickness.
    对具有任意厚度的靶，无偏折的通量随厚度呈指数规律而衰减。
  • Decaying with time, especially as a simple exponential function of time.
    瞬变的随时间延续而衰减的，尤指作为时间的一个简单的指数函数。
  • Inverse linear attenuation of light
    线性衰减
  • His power has begun to set.
    他的权势已开始衰减。
  • Attenuation of light is in the form of absorption.
    光是以吸收的形式衰减。
  • Yet some form of attenuation is mandatory.
    然而有些衰减形式是必须采用的。
weaken是什么意思：
v. 使虚弱，使衰弱；削弱，减弱；畏缩，动摇
  • Ministerial resolve has weakened noticeably.
    部长决议明显缓和。
  • The outflow weakens the dollar.
    资金外流削弱了美元。
  • You cannot strengthen the weak by weakening the strong.
    削弱强者不能使弱者变得强壮。
  • A rise in unemployment symptomatic of a weakening economy.
    失业增加是经济萧条的表现
  • The currency of that country is weakening on foreign exchanges
    那个国家的货币在外汇市场上疲软。
attenuate是什么意思：
v. 使变稀薄，使变细，使减弱
  • crustal attenuation
    地壳变薄作用
  • Attenuation of light is in the form of absorption.
    光是以吸收的形式衰减。
  • We are asking a network or system to attenuate certain frequencies
    我们正在要求一个网络或系统去压制某些频率。
  • The point of degradation, due to attenuation or distortion, at which a signal becomes unusable.
    由于衰减或失真使得信号变得不能使用的那个退化点。
  • Attaching strings to your offer will attenuate your chance to sell off the goods
    在你们的报盘上增加附加条件就会减少你们售出货物的机会。

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