10月18日翻译练习题_土木工程翻译练习题

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Protection of the milk supply endangered by a federal program is therefore left to the states themselves.Inquiries addreed to the health officers or other appropriate officials revealed that no tests had been made and that it simply was not known whether the milk was contaminated with pesticides or not.Meanwhile, after rather than before the control program was launched, some research into the peculiar nature of heptachlor was done.Perhaps it would be more accurate to say that someone looked up the research already published, since the basic fact that brought about belated action by the federal

government had been discovered several years before, and should have influenced the initial handling of the program.This is the fact that heptachlor, after a short period in the tiues of animals or plants or in the soil, aumes a considerably more toxic form known as heptachlor epoxide.The epoxide is popularly described as “an oxidation product” produced by weathering.The fact that this transformation could occur had been known since 1952;when the Food and Drug Administration discovered that female rats, fed 30 parts per million of heptachlor, had stored 165 parts per million of the more poisonous epoxide only two weeks later.一项由联邦政府主导的牛奶供应计划已陷入危机中，只好由州政府自己操作.通过向卫生部门或其它相关部门调查，发现没有对牛奶进行质量检测，甚至不知道牛奶是否受到杀虫剂的污染。同时，在这个保护牛奶供给质量项目开始实施之前而不是之后，对七氯(一种杀虫剂)病理形成因素已经开始研究中了.更准确地说有人见到研究结果已经公布了，正是对七氯的研究结果才使得联邦政府开始开展这个迟到了好几年的质量保护项目，而且这个结果应该会影响到该项目的初始操作。研究结果表明，七氯在动植物组织或土壤内短时间存在后，会形成一种毒性更大的物质叫做环氧七氯。环氧化物普遍被认为是一种氧化产物，人们从1952年就已经知道这种氧化物的转变会发生。当时美国食品药物安全局通过一项实验表明，当一个雌性老鼠被喂食30PPM的七氯后，再短短两个礼拜后，体内便能形成165PPM的环氧七氯。

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