Since 1979 China has collected 24.7 billion yuan in pollutant discharge fees.1979年以来,全国共征收排污费247亿元.Knowledge of any given exposure to air pollutant mixtures is largely inadequate.关于任何特定的暴露于空气污染混合物中的知识,都是极为欠缺的.We will dis...
This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources.本章论述几种有关各种排放源的大气污染物浓度分布的估算方法.A pre - dicing method for calculating the distribution of ...
房子矗立在松树丛中一块突出的岩石上。The house stands on a shelf of rock among pines.我认为我们的成绩算是突出的。I believe our results are not untypical.他站在入口上面突出的阳台上.He stood at a balcony that projects over the entrance....
In 1978, the farm's hilly orchards increased by 300 mu.1978年, 这个农场新增山地果园300亩.How much fertilizer should be applied on one mu of land?一亩地要施多少肥?What is the per mu yield of grain here?这里的粮食亩产量是多少?...
牲畜已经喂好并关进厩里了。The animals had been fed and stabled.牲畜聚在一起抵御狂风.The cattle banded together for protection from the wind.在大农场,牲畜通常是打烙印的.On big farms cattle are usually stamped with brands....
Two phase - shift - networks of frequency discriminator are given circuit and layout examples.本文较详细地分析了鉴频器用移相网络的特性和集成化难易点.Quartz crystal, crystal oscillator, ceramic resonator, ceramic filter, saw filter, ceramic discrim...
到6点左右，他们又把音乐声音开大了。By about six, they're cranking the music up loud again.她为他们倒上饮料，然后开大音量播放唱片。She poured them drinks, and put a record on loud.把暖气开大。Turn the heat up high....