Because a thin film has formed on the surface of the syrup due to its exposure to air.
因为暴露在空气中，所以在糖浆的表面，形成了一层薄膜。
Exposure also comes from breathing air at the surface of the water, where chemicals become volatile.
呼吸水面的空气也能接触到氯，因为这种化学物质在水里具有挥发性。
In most cases, such exposure only affects the surface of exposed product. However, potentially contaminated product should be detained until its status can be determined.
在大多数情况下，这样的接触只会影响到暴露于污染物下的产品表面。但应扣留潜在的受污染产品，直到确定其受污染情况。
Excessive or prolonged exposure to high temperatures will blacken the surface and reduce the effectiveness of the mirror.
因为过度的或长时间暴露于高温下将会使便面变黑和减少镜子有效使用性。
The results showed the exposure surface of planets decreased by coating treatment, so the concentration of formaldehyde and benzene series in air reduced and were lower than the standard value.
结果表明，经覆盖处理后，木制板材表面暴露面积减少，使甲醛、苯系物在空气中平衡浓度降低，低于一定标准。
The release and aerosolization of the fungal spore on the surface of building materials are the key factors to investigate the bioaerosol exposure and harmful effects on human health.
建筑材料表面真菌孢子的释放和气溶胶的形成，是研究室内空气微生物气溶胶暴露及其对人体危害的关键因素。
And the boundary of them has the same lithologic character: the ravinement surface of river course or exposure mudstone of flooding plain and root clay.
二者的界面是相同的，均为河道砂体底部的冲刷侵蚀面或者是暴露过泛滥平原泥岩、根土岩等。
The surface of polymer is direct exposure to environment, as a focus of weathering and weather resistance.
聚合物材料的表面与环境直接接触，从而成为高分子材料大气老化与抗老化的焦点。
The contact between the strata above and below the boundary are disconformable, with a short exposure surface within it.
界线上下岩层为假整合接触，期间有一短暂的暴露面。
Before the exposure, the surface of the object were coated with paints according to the reflection effect we expected.
介绍了为了获得我们所需要的颜色效果，曝光前对物体表面涂色的选择，以及彩色反射全息图的制作过程。
When the white light exposure at different objects, because objects with different surface properties, light absorption and reflection also different.
当白色光照射在不同的物体上时，由于物体表面性质不同，对光的吸收和反射也就不同了。
Repeated or prolonged exposure to heated and agitated water can degrade the cylinder's external surface and can eventually compromise the cylinder's mechanical integrity.
因为重复或长时间暴露在热水或沸水中会使钢瓶外表面退化，最终危及钢瓶的机械完整性。
After exposure to carbon monoxide, contents of oxygen in the surface oxides of uranium metal and U3O8 are decreased and O/U ratios decrease 7. 2% , 8.0% respectively.
在一氧化碳气氛中金属铀表层氧化物和八氧化三铀中氧含量减少，O/U比值分别下降了7.2％和8.0％。
The surface topography and structure and morphology of the coating changed a little after 25 weeks salt fog exposure. As the result, the coating resistance hold high over the period of 25 weeks.
研究结果表明，单纯盐雾老化对涂层表面形貌和结构形态没有产生明显影响，因此，盐雾老化25周后涂层仍具有较高的电化学阻抗。
The surface topography and structure and morphology of the coating changed a little after 25 weeks salt fog exposure. As the result, the coating resistance hold high over the period of 25 weeks.
研究结果表明，单纯盐雾老化对涂层表面形貌和结构形态没有产生明显影响，因此，盐雾老化25周后涂层仍具有较高的电化学阻抗。
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