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1. scatterometer (10 ppm);
1. 散射计(10 ppm);
Last Update: 2016-12-04
Usage Frequency: 4
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nonsignificant incidence of hydroureter at 15 ppm and slight non-significant increase in the incidence of extra 14th ribs at 10 ppm was observed.
同时观察到,浓度为百万分之15时出现输尿管轻微积水,浓度为百万分之10时,额外的第14根肋骨的发病率略有增加。
Last Update: 2016-12-04
Usage Frequency: 1
Quality:
in people who do not consume contaminated fish, 1 to 2 ppm of mercury in hair is normal while those consuming contaminated fish may have 10 ppm or higher mercury in hair.
在不食用污染鱼类的人们体内,毛发中含有百万分之一到二的汞是正常的,而那些食用污染鱼类的人毛发中可能含有百万分之十或更多的汞。
Last Update: 2016-12-04
Usage Frequency: 1
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in a two-generation reproduction study, the noel for reproductive and developmental endpoints was 10 ppm and the noel for cholinesterase depression was 5 ppm (ecco, 1997).
两代繁殖研究发现,繁殖和发育终点的无明显效应水平为10 ppm,胆碱酯酶抑郁的无明显效应水平为5 ppm(欧洲联盟委员会通信处,1997年)。
Last Update: 2016-12-04
Usage Frequency: 2
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mr. keiichi ohnishi, co-chair of the chemicals technical options committee (ctoc), reported on the continuing feedstock use of ozone-depleting substances in 2012, which totalled 1.1 megatonnes, a 4 per cent increase from 2011, providing a brief overview on the status of process agent uses and updated information on n-propyl bromide, indicating that the threshold limit value had been lowered by the american conference of governmental industrial hygienists from 10 ppm to 0.1 ppm in 2014.
化学品技术选择委员会共同主席keiichi ohnishi先生汇报了2012年消耗臭氧层物质被持续用作原料的情况,用量共计1.1兆吨,比2011年增长4%,并简要概述了加工剂用途的状况及n-丙基溴的最新信息,同时指出,美国政府工业卫生学家会议已于2014年将阈限值从10 ppm降低至0.1 ppm。
Last Update: 2016-12-04
Usage Frequency: 1
Quality: