A few kids may have had a low level exposure, but severe poisoning from the toys alone is pretty unlikely.
一小部分孩子呢，可能已经有低程度受铅影响，但单单说要这些玩具使得孩子严重铅中毒还是相当不可能的。
The National Institutes of Health (NIH) has also launched a $30 million study on the safety of low level exposure to BPA.
美国卫生研究院（NIH）也启动三千万资金展开对低剂量BPA安全性的研究。
At present, there is insufficient data to draw firm conclusions about health effects from long-term low-level exposure typically occurring in the everyday environment.
目前，关于通常发生在日常环境中的长期低剂量辐射对人体健康的影响，仍缺乏足够的数据来做出强有力的结论。
Both triclosan and BPA have long been suspected of causing health problems, the 100 million dollar question is whether we should worry about the low-level exposure most of us get.
长期以来，人们一直怀疑三氯沙和双酚A是否对身体健康有影响，而现在关键的问题是低浓度下的这些物质是否会对人类产生影响。
Chronic fluorine exposure may cause abnormal calcium accumulation in bone structure (fluorosis) due to low-level systemic absorption.
慢性氟暴露会导致由于低水平的系统吸收引起的在骨骼结构里的异常钙积累(氟中毒)。
However, the film exposure device of the currently widespread-used X-ray machine has poor quality of image, a low level of automation, poor precision controlled and film exposure and large size.
但是目前国内广泛使用的X射线机的点片曝光装置还存在自动化程度低、控制精度差、曝光精度低以及体积大等缺点。
Conclusion it suggests that occupational exposure to low level of aluminum can affect the neurobehavioral function and metabolism of monoamine neurotransmitter.
结论提示职业性低浓度接触铝可影响神经行为功能和单胺类神经递质代谢。
Modern research has shown that children are affected at very low exposure levels and that there is no safe level of exposure.
现代研究指明孩子们会在很低的暴露水平上受到影响。并且没有安全的暴露水平。
OBJECTIVE:To explore the effect of low level lead exposure during pregnancy on the auditory developmental level of infants through examination of auditory brainstem response.
目的：通过听脑干反应检查观察孕期低水平铅暴露对婴儿期听力发育的影响。
A precise method to adaptively adjust the exposure time of CCD has been proposed and demonstrated based on the design of the driving circuit system and timing of ICX659ALA, a Low Light Level CCD.
在设计微光CCD ICX659ALA的驱动电路和驱动时序的基础上，提出了一种自适应精确调节曝光时间的方法。
Objectivel To survey the effect of low-level lead exposure on newborn weight.
目的为探讨出生前后低水平铅暴露对新生儿出生体重的影响。
Objectives: Studying the effects of low-level lead exposure during pregnancy on fetal bone metabolism.
目的探讨妊娠期低水平铅暴露对胎儿骨代谢的影响。
Objective:To observe the effect of long term exposure to low level of lead on cellular immune function in mice.
目的：观察长期低铅暴露对小鼠细胞免疫功能的影响。
According to psychological scientist Joel Nigg of the Oregon Health & Science University, this universal low-level exposure makes lead an ideal candidate for the disorder's trigger.
根据奥勒冈州卫生科学大学心理学家JoelNigg的结论，这种普遍的的低含量接触使铅成为触发行为异常的理想的候选因素。
Searching for the effect biomarkers of long-term and low-level exposure to op has a very important meaning in detection of the earlier harmful effect of exposed populations in time.
探讨长期低剂量接触OP的效应标志物，对于及时发现职业接触人群早期健康损害，预防和控制慢性农药中毒具有十分重要的意义。
Conclusion ECG and hearing in workers could be affected with long-term exposure to medium low intensity noise, even if the exposure average level was lower than the limited level of hygienic standard.
结论作业人员长期在平均噪声强度低于卫生标准下工作，仍可有一定程度的心电图改变和听力损失。
Conclusion Female reproductive function might be affected by lead even if exposure level is low.
结论空气中低浓度铅对女工生殖机能有一定影响。
Since urinary S-phenylmercapturic acid concentration could be well related to benzene exposure, it could be a sensitive and specific biomarker of low-level benzene exposure.
尿中苯巯基尿酸（SPMA）与苯接触存在良好相关性，是低浓度苯接触特异和敏感的生物标志物。
Consequently one of the conclusions drawn is that repeated exposure to low levels of HIV may produce a level of resistance to HIV in this population.
结果的一个结论是，反复暴露于低剂量的艾滋病毒可能会产生一定程度的抵抗HIV在该人群。
Objective to study the effects of prenatal exposure to low level lead on the physical and neuro-behavioral development of mice and the interaction between lead and zinc.
目的研究孕期铅染毒对仔鼠生理发育与行为能力的影响及其与锌的相互作用。
Consequently one of the conclusions drawn is that repeated exposure to low levels of HIV may produce a level of resistance to HIV in this population.
最终一个结论就是这种低风险的方式能够防止HIV在这些人群中蔓延。
Consequently one of the conclusions drawn is that repeated exposure to low levels of HIV may produce a level of resistance to HIV in this population.
最终一个结论就是这种低风险的方式能够防止HIV在这些人群中蔓延。
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