n.挫折( frustration的名词复数 )，失败，挫败，失意...

n.改善...

水八配基...

n.等浓度...

n.游行示威，示范，证明，表露...

The pollution of nitric oxide and the method of denitration were introduced.介绍了氮氧化物排放污染的危害以及氮氧化物控制的方法.The bed temperature measurement is crucial for CFB boiler as a result of desulphurization and denitration.床温测量对于循环流化床(...

They are provisioned with seven days'rations.他们得到了7天的给养.The Russian soldiers sampled the officers' rations and wolfed the superior food with delight.俄军士兵尝了一下长官的配给食物，然后高高兴兴地把那些高级食物一扫而光。The soldiers complained th...

Colors are becoming more vivid. Desaturation has drained away , and the chroma factor pumped up.色彩越来越生动.不饱和理论退潮,取而代之的是色彩浓度.OSA is associated with oxygen desaturation to a frying degree andto 15 % of middle - aged adults ...

农业土壤改良...

rationalize的现在进行时为：rationalizing...

operational的音标：operational的英式发音音标为：[ˌɒpə'reɪʃənl]operational的美式发音音标为：[ˌɑpə'reɪʃənl]...

n.（正式仪式中的）演说，演讲...

n.变色，褪色，污染...

He puts his administration at risk if he doesn't come through on these promises for reform...如果他不履行改革承诺，就会使他所领导的政府面临危险。Officials at the Transportation Administration say they have already tried out a handful of back...

The rotor system locates in an aircraft flying with an asymptotic acceleration.研究渐变加速的飞行器内碰摩转子系统的非线性特性.an acceleration in the rate of economic growth经济增长加速Acceleration to 60 mph takes a mere 5.7 seconds.加速到时速60英里只需要5.7秒。...

We live in an era of rationality.我们生活在理性的时代。When the final vote came, rationality took over.最后一轮投票时，理性占了上风。We predicate rationality of man.我们断言理性是人类的属性....

n.化脓，成熟...

n.参加示威者...

conflagration的复数形式为：conflagrations...

rations的音标：...

n.旋转，回旋，回转...

oration的近义词有：address, speech, lecture, oration, report, talk。下面这些名词均含"演讲，讲话，报告"的含义：address ：正式用词，指在庄严隆重的场合作精心准备的演讲或正式演说。speech ：普通用词，指一般的发言或讲话，可以是事先准备的，也可以是即席的。lecture ：侧重带学术性的演讲。oration ：常指在特殊场合，辞藻华丽，形式庄重，旨在激发听众感情的正式演说。...

In heavy concentrations, ozone is irritating to the eyes, nose and throat.高浓度的臭氧会对眼睛、鼻子和咽喉有刺激作用。Large concentrations of capital were in the hands of merchants.大量资本集中在商人手里.The latest data showed that global ozone concentr...

levogyration的音标：levogyration的英式发音音标为：[levədʒaɪ'reɪʃn]levogyration的美式发音音标为：[levədʒaɪ'reɪʃn]...

n.外向构型...

vibration的音标：vibration的英式发音音标为：[vaɪ'breɪʃn]vibration的美式发音音标为：[vaɪ'breʃən]...

ratio的复数形式为：ratios...

celebration的音标：celebration的英式发音音标为：[ˌselɪ'breɪʃn]celebration的美式发音音标为：[ˌselɪ'breɪʃn]...

n.封闭状态，无孔的东西...

execration的音标：execration的英式发音音标为：[ˌeksɪ'kreɪʃən]execration的美式发音音标为：[ˌɛksɪ'kreʃən]...