Because rice accumulates arsenic, he says, even the background level "is a problem for people who eat much rice in their diet."

尽管稻米中积累的砷含量较低，但史蒂夫.麦格拉思认为“人们在日常膳食中如果摄入过多的稻米，会对身体产生危害。”

youdao

Meanwhile in HUVEC cells, SP-Tat-Apoptin remained in the cytoplasm and no induction of apoptosis above the background level was observed.

同时，在HUVEC细胞中，SP - Tat - Apoptin仍停留在胞质中，没有观察到高于基础水平的凋亡被诱导。

youdao

This paper completely introduces the investigation of environmental radioactive background level before the commissioning of power plant and environment monitoring system of power plant.

文中较全面地介绍了电站运行前的环境放射性本底水平调查和电站的环境监测系统。

youdao

Critics say the national exam is biased, since it presumes a level of knowledge and cultural background that students from working class families may not have.

VOA: standard.2010.02.02

The new safety level is about 100 times higher than the background level of dust at ground level.

ECONOMIST: Volcanoes and air travel: Small eruption in Iceland | The

The neutron emission was about 400 times stronger than the usual background level.

BBC: NEWS | Science/Nature | Table-top fusion 'demonstrated'

The background level of tropospheric ozone is inexorably rising as volatile organic compounds are released from burning coal and oil.

FORBES: Protesters To Target Koch Brothers' Secretive 'Billionaires Caucus'