3.17 水平屏障（Horizontal Barrier） 指为防止白蚁在土壤中从垂直方向侵入水利工程，通过使用白蚁防治药物或其它材料处理工程表面下和周边水平方向的土壤形成的化学药...
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注意：研究人员并未考虑研究对象所居住环境中是否有隔音屏障以及居住楼层的差别，这些因素会影响暴露在交通噪音中的水平。
Caveat: the researchers couldn't account for the presence of noise barriers or the floor level on which the subjects lived, factors that would influence traffic-noise exposure.
但是喝红酒并不能增血糖和胰岛素的水平，因为白藜芦醇在脑中不能有效地通过血脑屏障。
But drinking red wine is not likely to improve blood sugar and insulin levels because resveratrol does not cross the blood-brain barrier very efficiently.
结论经氯仿处理后皮肤的屏障功能降低，与皮肤接触氯仿的水平相关。
CONCLUSIONS Skin barrier function decreased after exposed to chloroform, and related with the exposed level of chloroform.
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