So there's opportunities for exposure from at least three different pathways.
因此，接触的机会至少有三个不同的路径。
2
Mercury pollution has become an environmental public health issue. This review was focusing on the sources, the pathways of mercury exposure and the measuring method of environmental mercury.
对环境汞污染的来源、人体暴露途径及其检测方法等方面进行了综述，为预防和治理汞污染提供了资料。
3
Multiple pathways are involved in maintaining genetic integrity of cell after exposure to ionizing radiations.