Humans need about 150 micrograms each day.
人体每天需要150毫克碘。
Swallow 200 micrograms a day of chromium polynicotinate.
每天吞食200毫克的烟酸铬。
The upper tolerance level in humans is about 400 micrograms a day.
人类最大耐受量大约400毫克每天。
It is recommended that men take a 200 micrograms of selenium daily.
它建议说，男人娶了200微克的硒，每日。
Results should not be above 20 micrograms per liter of urine (20ug/L).
测试结果应当不高于20微克/升。
But collard greens, with about 375 micrograms per half-cup, are among the best.
而其中每半杯含375毫克的羽衣甘蓝蔬菜则是佼佼者。
Health risks in children at various blood lead levels, in micrograms per liter.
不同的血铅水准对儿童健康的风险有别，以下数值单位为微克每升。
Three of the experts recommend 50 micrograms (mcg) or more of this essential mineral.
专家三建议50微克（微克）或本必需的矿物质多。
During one dust storm, airborne aluminum concentrations exceeded 1,400 micrograms per cubic meter.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
During one dust storm, airborne aluminum concentrations exceeded 1, 400 micrograms per cubic meter.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
To recover the few micrograms of gold deposited on the pins, we're going to use an electrolytic cell.
要想获得针脚上那几微克的金我们需要一个电解池。
Each gram of salt contains four hundred micrograms of sodium, which is how foods may list their salt content.
每克盐含有四百微克的钠，它是食物中标示盐含量的元素。
LSD is one of the most potent hallucinogenic drugs-active at just around 100 micrograms... a miniscule amount.
LSD是强大的活性致幻药物之一，约100微克就能有很显著的致幻作用。
The guidelines say that, to prevent ill health, those levels should be lower than 20 micrograms per cubic metre.
准则指出，为了防止健康不良，这些水平应低于每立方米20微克。
This paper presents an automatic segmentation scheme for cell multi-spectral micrograms based on spectrum ratio.
提出了一种基于光谱比值的细胞多光谱显微图像的自动分割方法。
WHO recommends an upper limit of 20 micrograms for PM10s, which can cause serious respiratory problems in humans.
世界卫生组织建议可吸入颗粒物的上限为20微克，这种体积的颗粒物将导致严重的人体呼吸系统疾病。
The EPA's threshold for safe exposure to PM 2.5 particles, as they're called, is 15 micrograms per cubic meter of air.
美国环保局的安全环境门槛是可吸入颗粒为PM 2.5，即每立方米空气中颗粒含量为15(译者：应该为25)微克。
In Beijing, the average air-quality index (AQI) over the past month was 195 micrograms per cubic meter, peaking at 470.
在北京，过去一个月的平均空气质量指数(AQI)为每立方米195微克，最高达到470微克。
The World Health Organization (WHO) considers PM2.5 readings of 25 micrograms per cubic metre as the maximum safe level.
世界卫生组织（WHO）将PM2.5每立方米25微克的指数认定为最大安全值。
In the UK drinking water can contain no more than 100 micrograms of THM per litre. A microgram is one millionth of a gram.
在英国每升饮用水中三卤甲烷（THM）不允许超过 100 微克（一微克是一克的一百万之一）。
What was surprising was that the wood of the survivor tree's rings had only 2.3 micrograms of mercury per kilogram in it.
出人意料的是这棵幸存的树中年轮的木质中每公斤仅含2.3毫克汞。
In heavily polluted cities such as Delhi, particle levels average over 300 micrograms and most of this is probably PM2.5s.
在那些污染严重的城市，如德里，微粒含量平均值超过了300微克，其中大多数可能都是PM 2.5。
The best way to get enough folic acid is to take a multivitamin with400 micrograms of folic acid in it and eat a healthy diet.
获得叶酸的最佳途径是食用多种维生素的食物(含400毫克的叶酸)健康饮食。
The best way to get enough folic acid is to take a multivitamin with 400 micrograms of folic acid in it and eat a healthy diet.
获得叶酸的最佳途径是食用多种维生素的食物(需含400毫克的叶酸)，健康饮食。
Keep in mind, though, that the amounts of vitamin K in healthy oils are still tiny - one tablespoon of canola oil has 20 micrograms.
但要知道，健康食用油中的维生素k含量仍然很少——一汤匙菜籽油中的含量仅为20毫克。
S. national air quality standards.During one dust storm, airborne aluminum concentrations exceeded 1,400 micrograms per cubic meter.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
S. national air quality standards. During one dust storm, airborne aluminum concentrations exceeded 1,400 micrograms per cubic meter.
一场沙尘暴中，空气中的铝浓度会超过1400微克每立方米。
Chronic exposure to more than 65 micrograms per cubic meter of any type of particle in this size range may increase risk for health problems.
长期暴露在含有超过65微克每立方米的任何颗粒的空气中，都会增加健康隐患。
By reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
将可吸入颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。
By reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.
将可吸入颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。
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