microgrammes

与microgrammes相关的网络例句 [注：此内容来源于网络，仅供参考]

The density of particulate matter in north China averages 112 microgrammes and that in the south, 88 microgrammes, he said at a forum on China's investment environment in Chengdu, capital of southwest China's Sichuan Province.

他在一个关于中国西南部四川省的省会成都市的投资环境的论坛上说，空气中粉尘微粒的密度在中国北方城市平均为112微克，在南方城市为88微克。

The WHO guideline sets the bar at 20 microgrammes.

而世界卫生组织的指引上限是20微克。

Only1 per cent of Chinese urban residents live in cities withconcentrations of such particulate matter below 40 microgrammes percubic metre of air.

只有1%的中国城市居民生活在颗粒物浓度低于每立方米空气40微克的城市中。

In2003, 58 per cent of Chinese city dwellers were exposed to particulatematter of more than 100 microgrammes,"twice the annual averagestandard in the US", the report says.

该报告称，2003年，58%的中国城市居民暴露在颗粒物浓度高于100微克的环境中，&是美国年均水平的两倍&。

Microgrammes per litre, used to measure the concentration of dissolved substances, approximately equal to ppb

用于度量溶解物质浓度的指标，近似于十亿分之一。