1. 污染：表面处理后的底层冠不能直接手摸以免污染(contaminating)瓷覆盖面,应用针持夹持. ② 不透明瓷粉的及烧结(opaque firing):先在底层冠的瓷覆盖区涂布薄层的不透明瓷粉专用液(mixing liquid). 取适量不透明瓷粉在玻板上与专用液调合,
1. Always wash the outside of your melon before slicing to keep from contaminating the flesh.
2. Five barrels of mustard gas were unearthed and broken in Qiqihar last Monday, contaminating the soil.
3. Wei also said yesterday that the new satellite launch base would not use contaminating, poisonous or nuclear fuel.
4. The plant's ponds were blamed for contaminating water supplies in subdivisions and a trailer park.
5. Unsanitary landfills contaminating the soil and groundwater are major causes for concern.
6. This is in addition to disturbing the site's original arrangement, and contaminating the remains.
7. The new and higher standards are necessary because of the pollution that is increasingly contaminating water sources.
8. We cannot and should not rely on police to prevent " gutter oil " from contaminating the food on our tables.
adj
1. spreading pollution or contamination
especially radioactive contamination
e.g. the air near the foundry was always dirty
a dirty bomb releases enormous amounts of long-lived radioactive fallout
Synonym: dirty
2. that infects or taints
Synonym: corrupting