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- economic infestation level 经济危害允许水平
- Objective:To investigate the infestation level by ectoparasites on the rodent in Dongling Mountain,Western Beijing. 目的:调查北京东灵山地区鼠类感染寄生虫的情况。
- Abstract: The mycotoxins and their infestation level in stored rice,wheat and corn were investigated in Shandong Province.The infestation level in freshely havested grain were compared with that of the stored grain. 文摘:对山东省储藏大米、小麦和玉米中霉菌毒素及污染水平进行了抽样调查，并对新旧储粮中霉菌毒素污染水平进行了比较。
- He has been an unsung hero of the country's economic growth. 他是使这个国家经济成长的无名英雄。
- Mother works economic advantages accrue. 母亲工作时经济收入增加了。
- They had led the country into economic disaster. 他们把国家带入了经济灾难中。
- Do you know the economic policy of this year? 你知道今年的经济政策吗？
- Economic depression often follows war. 经济不景气常因战争所致。
- The country is in a bad economic state. 这个国家的经济情况很差。
- The lecture bore down on economic causes. 那次演讲着重论述经济方面的原因。
- The book will open up to readers new vistas on economic thinking. 这本书将为读者展现经济思想的新远景。
- They are faced with slippery economic problems. 他们面临棘手的经济问题。
- The economic situation is now different. 现在经济形势不同了。
- Economic recovery is supposedly getting underway. 经济据称正在恢复中。
- They are thrashing out a new economic policy. 他们正在研究制定一个新的经济政策。
- My friends bailed me out with economic aid. 我的朋友们从经济上帮助我使我脱离困境。
- They bought an old house for economic reasons. 出於经济上的原因他们买了一所旧房子。
- The economic crisis lasted for several years. 经济危机持续了好几年。
- This book treats of economic problems. 这本书探讨经济问题。
- The economic boom tapered off in the 1970s. 经济繁荣在七十年代慢慢消失了。
